Windows 11 24H2 rollout widens as safeguards lift

Microsoft has quietly widened the Windows 11, version 24H2 rollout again, removing a compatibility safeguard that had prevented a class of systems from receiving the feature update and making the upgrade available to more users — but the update remains peppered with cautionary notices and lingering issues that administrators and enthusiasts need to weigh before upgrading.

Background​

Microsoft uses compatibility “safeguard holds” to block specific devices or configurations from receiving major feature updates when telemetry or partner reports show a real risk of breakage. These holds are applied selectively and tracked by a safeguard ID, which IT teams can check with Windows Update for Business reporting or via the Windows release health dashboard. The company’s stated intent is to reduce widespread data-loss, device breakage, or functionality regressions by stopping the update from landing on systems identified as vulnerable.
Safeguard holds are not permanent. When Microsoft, an OEM, or a third-party vendor supplies a validated fix — usually an updated driver or app version — Microsoft lifts the hold and the feature update is allowed to flow again. After a hold is lifted, Microsoft warns it may take up to 48 hours (and occasionally a restart) for a device to be offered the feature update via Windows Update. This staggered approach prevents new problems from cascading while ensuring fixes propagate safely.

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What happened this week: the newly lifted block​

• Microsoft has removed a compatibility hold that had been preventing some devices from being offered Windows 11, version 24H2 through Windows Update. The company’s Release Health page and independent reporting show the block removal was done after the underlying issue was corrected.
• The specific safeguard that was cited in multiple community reports around the camera/app freeze issue was safeguard ID 53340062. That hold was applied due to an incompatibility that could cause apps that rely on integrated camera object/face detection — including the Camera app and Windows Hello face sign-in — to freeze or become unresponsive after upgrading to 24H2. Microsoft flagged the problem and prevented affected devices from getting the feature update until corrective actions were available.
• Separately, Microsoft has also resolved — and removed the safeguard for — other high-profile 24H2 compatibility problems in recent months. The much-discussed Dirac audio regression (rooted in a third-party DLL named cridspapo.dll that could cause total audio loss) was ultimately fixed via updated drivers published through Windows Update; Microsoft marked that Dirac-related hold as resolved and removed the block after the vendor-supplied driver reached distribution.

These removals mean a broader set of PCs should now be able to receive 24H2 automatically — if there are no other independent safeguard holds targeting different drivers, apps, or platform combinations on the same devices. Microsoft’s advice remains to install the latest cumulative and driver updates first, reboot, then wait up to 48 hours for the appraiser to permit the 24H2 offer.

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Why the camera and Dirac blocks mattered: technical outline​

Camera / face/object detection freeze (safeguard ID 53340062)​

• Symptom: After upgrading to Windows 11 24H2, systems using object or face detection features on integrated cameras could see the Camera app or other dependent apps become unresponsive. The issue also affected Windows Hello facial recognition on some hardware. Because the problem impaired core functionality for affected users, Microsoft applied a targeted safeguard to prevent the upgrade from being offered.
• Root cause (as described by Microsoft): A specific interaction between the updated 24H2 camera stack and some device drivers or middleware components used for face/object detection caused hangs or crashes in camera-dependent scenarios. The safeguard was a protective measure while device makers and Microsoft worked on driver updates and other mitigations.

Dirac audio (cridspapo.dll)​

• Symptom: On devices that included Dirac Audio middleware with the cridspapo.dll component, installing 24H2 could lead to complete audio loss: integrated speakers, Bluetooth speakers/headsets, and app-level audio endpoints were not recognized, effectively silencing the machine.
• Root cause and resolution: The incompatibility was traced to a third-party audio DLL whose behavior conflicted with changes in Windows’ audio initialization for the 24H2 branch. OEMs and Dirac rebuilt drivers and middleware packages; Microsoft distributed the corrected driver as a Windows Update package and then removed the compatibility hold once telemetry showed the fix was working in the field. The remediation path was driver-level rather than changing the 24H2 feature package itself.

Both examples show how a single third‑party component — a camera driver/middleware or a Dirac DLL — can block a feature update for a subset of devices. That’s precisely the scenario safeguard holds are designed to address: targeted, often vendor-specific regressions that would cause a large negative experience if allowed to propagate during a major rollout.

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What else remains broken or fragile in 24H2 (state of known issues)​

Windows 11 24H2 shipped with a non-trivial list of platform- and vendor-specific issues that Microsoft has tracked publicly. Major recurring problem areas have included:

• Auto HDR causing game crashes or incorrect colors (safeguard ID 55382406; fixed with KB updates in early 2025).
• Easy Anti‑Cheat driver incompatibilities on some Intel Alder Lake+ systems (historical holds tied to game stability).
• App and driver regressions that lead to stuttering, video playback issues, or DRM/PlayReady/HDCP anomalies on certain GPU / browser combinations (community reports and Microsoft Q&A threads show ongoing DRM/HDCP troubles in Windows/Edge for some AMD/NVIDIA combos). This class of problem has been reported widely in user forums but is not always listed as a global Release Health item; instead it appears as device-, browser-, or vendor-specific reports.

Independent outlets and forums continue to surface new 24H2 pain points — from display color depth misbehavior to NDI/OBS streaming regressions after certain security patches — and Microsoft’s Release Health page is continuously updated as issues are triaged, mitigated, or resolved. Administrators should consult the Release Health hub for the most current list of known issues and safeguard IDs before upgrading at scale.

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DRM / HDCP playback issue: what we know (and what remains uncertain)​

• Community reports from Edge/Chromium forums, Microsoft Q&A, and user threads have described PlayReady / HDCP / DRM playback regressions after 24H2 or after certain security updates — symptoms include inability to play 4K/HDCP‑protected streams, reduced DRM resolution, or even crashes when attempting protected playback. Some users reported PlayReady hardware DRM being disabled while software decoding still works.
• Microsoft has acknowledged DRM-related questions in Q&A threads and support forums, and community workarounds (for example tweaking Edge flags or driver rollbacks) have been circulated. However, a single, universally applicable Release Health entry explicitly naming an HDCP-wide regression tied to 24H2 is not consistently present in Microsoft’s public dashboard at the time of writing; many of the DRM symptoms are being tracked in vendor forums and Q&A threads rather than a single official “DRM/HDCP” issue page. That makes the claim of a formal Microsoft confirmation of a global HDCP/DRM regression harder to verify. Treat DRM and HDCP reports as real and impactful for affected users, but also as configuration- and driver-dependent until Microsoft posts a dedicated Release Health entry.
• Practical takeaway: If you rely on protected 4K/HDR playback (Netflix 4K, Dolby Vision, etc.) or use software/hardware DRM for production workflows, test your exact device and browser combination in a controlled environment before upgrading widely. Keep GPU drivers and Edge/Chrome up to date, and verify PlayReady / Widevine hardware support after any cumulative update. Community-sourced workarounds may help temporarily but can carry risk.

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Recommended checklist before upgrading to 24H2 (for users and admins)​

• Install all pending Quality/Security updates and driver updates from Windows Update and your OEM (BIOS/firmware and chipset/audio/graphics drivers). Many fixes for 24H2 compatibility were delivered as driver updates or cumulative patches.
• Confirm there are no active safeguard holds for your device by checking Settings > Windows Update > “Safeguard holds affecting your device” (or use Windows Update for Business reporting). Microsoft’s KB article KB5006965 explains how the safeguard information is surfaced.
• If you use critical camera, audio, or DRM workflows (Windows Hello, conferencing, 4K streaming), test a non-production machine first. Reproduce the exact apps and hardware paths (integrated camera + face detection, Dirac audio stacks, PlayReady playback in Edge) before mass deployment.
• Wait at least 48 hours after installing the latest cumulative updates before expecting Windows Update to offer 24H2; reboot to speed appraiser checks. Microsoft explicitly calls out the possible 48-hour propagation window after a fix is distributed.
• Do not force the 24H2 upgrade with the Media Creation Tool or Installation Assistant when Microsoft is applying a safeguard hold; doing so can expose your device to the precise break the safeguard was intended to prevent.

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When (and how) to bypass a safeguard hold — strong warnings​

Microsoft provides a Group Policy and a registry method (creating the DWORD value DisableWUfBSafeguards) that can bypass safeguard holds and allow a feature update to install. This is intended for controlled IT testing or for organizations that accept the risk. Use of this bypass can deliver the update to devices that Microsoft has expressly blocked because they are known to be at risk of breakage; that is a deliberate tradeoff.

• Recommendation: Only bypass safeguards in a lab or a small pilot where you can recover or rollback easily. Backup the device, document the affected apps/drivers, and be prepared to revert if you encounter the exact issues the safeguard aimed to prevent.
• Note: Community guides for the registry/GPO bypass are numerous and effective; however, they are not endorsed as a general consumer practice. Microsoft and the OEMs recommend waiting for published fixes unless you accept the risk.

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Critical analysis — strengths, shortcomings, and risk assessment​

Strengths​

• Microsoft’s safeguard system is pragmatic and surgical: by applying targeted holds rather than blanket pulls, Microsoft reduces the scope of impact while avoiding a global rollback. The approach preserves security updates while protecting specific functionality on affected hardware. That balance of safety vs. availability is a clear strength compared with historical, more sweeping update throttles.
• The recent pattern of fixes being delivered as driver updates (Dirac) or application updates (Safe Exam Browser, Ubisoft patches) is the correct engineering approach: address the root by updating the offending component, not by repackaging the large OS feature update. This reduces churn and avoids delaying feature updates for the broader population.

Shortcomings and risks​

• Transparency and signal timing: Some users and IT admins report difficulty determining when a specific safeguard is fully lifted for their device; Microsoft’s 48-hour caveat and distributed driver rollouts can make the upgrade window feel opaque. That uncertainty complicates scheduling mass deployments, especially in enterprise contexts.
• Fragmentation through third‑party middleware: Several high-impact regressions have stemmed from third-party DLLs and vendor drivers (Dirac, certain anti-cheat stacks, sprotect.sys, etc.). Those regressions highlight the ecosystem risk: one vendor’s middleware can halt upgrades for large device families, and remediation often depends on vendors producing timely validated drivers. This dependency chain is an operational risk for both consumers and enterprises.
• Community-driven DRM/HDCP issues remain messy: DRM and HDCP-related problems frequently appear as a mix of browser, GPU driver, and OS behavior. Because the symptoms and fixes are highly configuration-specific, users relying on protected playback need careful verification. The lack of a single, consolidated Microsoft Release Health entry for every DRM-related report makes it harder to get an authoritative “green light.” Treat DRM workarounds as stopgaps, not long-term solutions.

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Bottom line and practical guidance​

Windows 11 24H2 is gradually becoming available to more users as Microsoft and partner vendors continue to clear the backlog of device-specific issues. Recent safeguard removals — including the camera-related block tracked as 53340062 and the earlier Dirac audio block — demonstrate the safeguard mechanism working as designed: delay the rollout for vulnerable devices, push vendor fixes, remove the hold once telemetry shows the fix is effective, and then let the OS flow again.
That said, the release is not yet “clean” for every scenario. If your workflow depends on integrated camera face/object detection, specialized audio stacks (Dirac or unusual DSP middleware), protected playback (PlayReady/HDCP in Edge), or anti‑cheat drivers for gaming, treat the upgrade as a staged rollout:

• Test on representative hardware before a full deployment.
• Install the latest OEM driver packages and Windows quality updates before attempting 24H2.
• Monitor the Release Health dashboard and Windows Update for Business reports for safeguard IDs that affect your fleet.
• Only use the DisableWUfBSafeguards bypass under controlled test conditions with backups and rollback plans.

Microsoft’s incremental approach around safeguard holds reduces systemic risk for the broad user base, but it also transfers a heavier testing burden to administrators and power users who require uninterrupted camera, audio, or DRM functionality. For those groups, patience, verification, and careful driver/app maintenance remain the best defenses until the update offers settle and the last device-specific holds are cleared.

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If you manage systems centrally, prioritize an update window for a pilot group and validate the exact camera/audio/DRM scenarios your organization depends on. If you’re an enthusiast or gamer, check your game vendors, anti-cheat updates, and GPU driver release notes before upgrading; when in doubt, wait a few days after Microsoft reports a safeguard removal to let the fixes propagate.
(End of article)

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Source: Neowin More users can now download Windows 11 24H2 as Microsoft lifts yet another upgrade block

 

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Microsoft has quietly removed two of the most disruptive upgrade blocks that kept certain PCs from receiving the Windows 11 24H2 feature update: a long-standing camera/face‑detection safeguard and a widely felt audio/Bluetooth compatibility hold, meaning many devices that were previously blocked can now be offered 24H2 once the required driver and cumulative updates are installed.

Background: why the 24H2 rollout became a messy patchwork​

Windows 11 24H2 (the “2024 Update”) arrived with a set of feature and servicing changes intended to modernize media, audio, and camera stacks, plus security hardening across the platform. The changes also altered initialization orders, driver interaction points, and object‑detection pipelines used by on‑device AI features. Those deep changes exposed a recurring reality of large OS rollouts: low‑level middleware and vendor drivers that hook into core subsystems can break when the platform shifts even modestly.
Microsoft’s response model during the 24H2 rollout relied heavily on targeted safeguard holds (also called compatibility holds). These are narrowly scoped blocks applied via Windows Update to prevent a feature update from being offered to machines with a known problematic configuration. When a safeguard is in place, Windows Update will not present the feature update until Microsoft and hardware/software partners validate a fix and remove the hold.
This approach prevented a mass‑scale disaster on many machines, but it also created a fragmented user experience where some PCs received the update immediately while others were stopped — often for weeks or months — while OEMs and middleware vendors rebuilt drivers or issued application updates.

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What was fixed (and why it mattered)​

Camera / Windows Hello: freeze and object‑detection failures​

• The problem: On a limited set of devices, integrated cameras triggered application freezes when object‑ or face‑detection pipelines were executed. Symptoms included the Camera app becoming unresponsive and Windows Hello facial recognition failing to work reliably. In practice, this meant users on affected machines could experience app hangs, failed sign‑ins, and interruptions to apps that rely on camera‑based ML features.
• Scope: The issue was limited to devices that used certain imaging/recognition middleware or drivers that interacted poorly with the revised 24H2 camera stack.
• Timeline: Microsoft first documented the camera/face‑detection problem in October 2024 and applied a targeted safeguard to block 24H2 installs on affected systems. The block was tracked under a specific safeguard ID and remained in place while partners investigated and issued fixes.
• Fix delivery: Microsoft and device partners worked on driver and imaging component updates. The camera‑related safeguard was removed after fixes were validated and distributed, allowing previously blocked devices to be offered 24H2 again. Microsoft’s guidance for end users: install the latest cumulative and driver updates, restart, and wait — it can take up to 48 hours for the 24H2 offer to reappear in Windows Update after the remediation is present.

Why this mattered: Windows Hello facial recognition is a visible, day‑to‑day feature for many users. When sign‑in is unreliable or when the Camera app causes freezes, productivity and trust in the platform suffer. The safeguard prevented a bad upgrade experience but also prolonged delay for users who had to wait for vendor fixes.

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Audio & Bluetooth: Dirac’s cridspapo.dll and missing endpoints​

• The problem: A middleware component used on some systems — part of Dirac audio processing — contained a binary (cridspapo.dll) that failed to initialize on certain 24H2 configurations. The failure manifested not as degraded sound but as complete disappearance of audio endpoints: integrated speakers, Bluetooth headsets, and external speakers could become invisible to Windows after upgrade.
• Scope: A specific set of OEM packages and driver bundles that included this Dirac component were affected. Both wired and Bluetooth audio could be impacted, so the symptom was broad: no audio output despite devices ostensibly being connected.
• Timeline: Microsoft logged the issue and applied a safeguard in mid‑December 2024 to stop the 24H2 rollout to machines that contained the problematic binary. Because the fix required vendors/OEMs to rebuild their audio packages, the resolution was vendor‑driven and took significant coordination.
• Fix delivery: OEMs rebuilt the audio packages to be compatible with the 24H2 audio initialization behavior and published corrected drivers through Windows Update channels. Once telemetry showed the updated driver was propagating and devices were healthy, Microsoft removed the safeguard in mid‑September 2025. After installing the updated driver and cumulative updates (and restarting), affected devices became eligible for the 24H2 offer again.

Why this mattered: Loss of audio is a hard failure — it’s not just an annoyance, it’s a show‑stopper for multimedia, conferencing, and accessibility. The only safe remedy was a rebuilt vendor driver, which highlights how many platform regressions are solved by partner updates rather than a direct OS patch.

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The remaining high‑risk items you should know about​

As of the most recent platform health updates, the 24H2 rollout still lists confirmed or mitigated issues that admins and power users should watch:

• Wallpaper customization applications might not work as expected
• Status: Mitigated (compatibility hold in place for specific affected third‑party wallpaper apps).
• Impact: Some third‑party wallpaper or desktop customization tools can fail to respond or may break personalization settings after 24H2. The practical fix: update those applications when vendors publish compatible versions. For IT admins, consider blocking such apps on managed endpoints until vendors deliver updates.
• Compatibility issues with Intel Smart Sound Technology (Intel SST) drivers
• Status: Confirmed (first reported early in the 24H2 timeline).
• Impact: Affected systems may experience blue screens when using certain Intel SST driver versions. Intel and OEMs typically need to provide updated drivers; Microsoft has applied safeguards for impacted driver versions. Admins should inventory devices that use Intel SST and confirm driver revisions before permitting 24H2 upgrades.
• SenseShield / sprotect.sys driver conflicts
• Status: Confirmed; Microsoft is working with the vendor (SenseShield) regarding a driver called sprotect.sys which provides encryption protection and may be automatically installed by certain enterprise security or encryption suites.
• Impact: On affected versions of the sprotect.sys driver, devices may stop responding or display black/blue screens. Microsoft placed a safeguard to prevent 24H2 being offered to devices with the problematic driver until a fix is available.

Note: the dashboard of known issues is dynamic. Issues can be resolved, mitigated, or confirmed and the list changes as vendors publish updates and Microsoft validates telemetry. The active problems above reflect current statuses at the time Microsoft updated its Release Health dashboard; the situation can evolve rapidly and additional matters (for third‑party apps or niche drivers) may arise.

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How Microsoft handled the crisis — a measured response with tradeoffs​

Microsoft’s use of targeted safeguard holds is a textbook damage‑control strategy: stop the upgrade before it causes harm, work with vendors to develop a fix, then re‑open the distribution path. That approach successfully limited the scope of customer incidents — fewer users were exposed to drivers that would render core features useless.
Strengths of the approach:

• Granular protection prevents a full‑scale catastrophe while allowing healthy devices to continue receiving updates.
• Vendor collaboration ensures the long‑term fix is the correct one: updated drivers or rebuilt middleware rather than brittle OS workarounds.
• Telemetry‑driven removal: Microsoft waits for evidence that the fix actually propagated before removing a block.

Tradeoffs and risks:

• User confusion: end users often don’t understand safeguard holds; they just see “Update is on its way” but aren’t offered the feature update. That ambiguity frustrates consumers and admins.
• Time to fix: vendor rebuilds (especially for low‑level DSP or encryption drivers) take time to test and certify, which means prolonged holds.
• Manual update risk: users who force upgrades using the Installation Assistant or media will bypass safeguards and may be exposed to breakages. This undermines the protective intent of the safeguard model.
• Dependency on OEMs: platform health is increasingly dependent on third‑party middleware quality. When vendors ship drivers that assume prior behavior, a platform change can cascade into widespread regressions.

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Practical guidance — what users and IT admins should do now​

If you manage or own Windows devices, these steps will keep you safe while getting you up to date as quickly as practical.
For consumer users:

• Don’t force the 24H2 upgrade if Windows Update hasn’t offered it yet. Wait for Windows Update to present the offer after you install the latest quality updates.
• Install all pending security and optional cumulative updates (these often include the fixed drivers). Reboot after updates.
• Check Device Manager and OEM support pages for vendor‑provided driver updates (audio, camera, Intel chipset drivers) and install only vendor‑supplied drivers via Windows Update or the official OEM portal.
• If you must update manually, ensure you’ve installed the latest device drivers first; otherwise you risk bypassing the safeguard and encountering problems that could be difficult to roll back.

For IT administrators:

• Inventory low‑level drivers and middleware — focus on audio DSPs, camera/machine‑vision libraries, encryption helpers (drivers like sprotect.sys), and Intel SST drivers.
• Use Windows Update for Business reports and the Release Health dashboard to confirm whether your fleet has any safeguard holds or affected driver versions.
• Stage updates: deploy driver updates via your management channel before permitting feature upgrades. Validate a small test group before broad rollout.
• Avoid manual upgrade paths (installation assistant, ISO installs) for production machines until you confirm that safeguards are cleared for your device configurations.
• Document rollback and recovery plans — know how to restore images or use recovery options if a driver causes a black/blue screen after a forced installation.

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Why vendor drivers keep causing trouble — and what needs to change​

Three structural problems underlie the recurring issues with big Windows feature updates:

• Low‑level middleware is brittle. Components like audio DSP hooks, encryption drivers, and object‑detection filters operate at the heart of OS subsystems; small changes in initialization order or API semantics can cause failures that are hard to mitigate from the OS side.
• Certification and update velocity are misaligned. OEMs and middleware vendors don’t always have the same testing windows as Microsoft; when a platform change lands, vendors must rebuild, test, and distribute — a process that can be slow.
• Users and admins frequently bypass safegaurds. Whether out of impatience or ignorance, forcing an update erodes the protective value of safeguards and increases the number of incidents.

What should improve:

• Stronger pre‑release driver testing by Microsoft and OEMs focused on low‑level middleware compatibility matrices.
• Faster vendor channels for urgent fixes, including prioritized driver pushes through Windows Update.
• Better user transparency around safeguard holds — clearer messaging in Settings so users understand why an update isn’t available and what to do next (for example: “This device is temporarily blocked from receiving the Windows 11 2024 Update due to an audio driver incompatibility; install updates and restart to be eligible.”)
• Encourage vendor sign‑off: require vendors that ship low‑level binaries to certify compatibility against preview builds or provide a compatibility promise window.

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Quick checklist: how to prepare before accepting 24H2​

• Backup critical data and create a system restore point or an image backup.
• Install all pending Windows Updates (security and quality patches).
• Confirm that your audio, camera, and chipset drivers are the latest vendor versions.
• For laptops and factory configurations, prefer drivers from the OEM rather than generic driver packs.
• If your device is managed, coordinate with your patching window and ensure driver deployment precedes feature update rollout.

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Verdict: Better, but tethered to partner behavior​

The removal of the camera and Dirac audio safeguards is unquestionably good news: many users who were held back can now safely receive Windows 11 24H2. The fixes illustrate the effectiveness of Microsoft’s safeguard model when combined with vendor cooperation: stop the rollout, require vendor updates, validate through telemetry, then resume distribution.
That said, the experience remains a cautionary tale. The 24H2 rollout shows that a modern desktop OS is not just Microsoft’s responsibility anymore — it’s a multivendor ecosystem where OEMs, middleware vendors, and Microsoft must operate tightly in lockstep. Until testing, certification, and distribution pipelines are retooled for that reality, feature updates will continue to carry the risk of driver‑level regressions.
For most users the immediate takeaway is simple and practical: before expecting 24H2, ensure your system is fully up to date, prioritize vendor driver updates from your OEM, and do not force the upgrade if Windows Update hasn’t offered it. For IT teams, the message is equally clear: inventory your fleet’s low‑level drivers, stage driver deployments, and treat update windows as multi‑vendor coordination exercises — not single‑vendor rollouts.
Microsoft’s block removals mean one major phase of the 24H2 turbulence is over, but the event should also prompt a long‑term shift in how the industry prepares for future platform changes. Until that shift happens, safeguards work — and users and admins would be wise to respect them.

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Source: PCWorld Finally! Windows 11 24H2 won't break your webcam or Bluetooth anymore