Microsoft Halts Windows 11 24H2 Update Due to Critical eSCL Printer Bug

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In a move that has drawn significant attention from the tech community, Microsoft has paused the rollout of its Windows 11 24H2 update due to a critical bug affecting printers, scanners, and a range of network devices. This decision follows a troubling trend for the update, which has already been linked to various issues, particularly for organizations reliant on USB-connected peripherals.

The eSCL Bug: What You Need to Know​

The root of the problem lies in a newly identified bug related to the eScanner Communication Language (eSCL) protocol. This protocol is utilized by many USB-connected multifunction devices and scanners to facilitate communication and scanning functionality. Affected users may find that their devices, particularly those that employ eSCL for operation, become undetectable after the update is installed.

Key Points of the Issue:​

  • Detection Failure: Users may experience challenges in discovering USB-connected devices, with relevant messages indicating that discovery of these peripherals does not complete.
  • Affected Devices: The issue primarily impacts multifunction printers, standalone scanners, and potentially other network-enabled devices that rely on the eSCL protocol.
  • Trigger Mechanism: Microsoft has indicated that the problems arise when these devices are unable to switch from eSCL mode to USB mode, hindering proper driver matching for functionality.

Broader Implications for Windows 11 Users​

The 24H2 update has not had an easy rollout since its introduction. Users have already reported various glitches affecting gaming performance, internet connectivity, and now, essential device functionality. This latest move hints at the challenges Microsoft faces in ensuring a seamless upgrade experience while balancing the complexities of device compatibility in an increasingly diverse hardware ecosystem.

What Are eSCL Devices?​

To better understand the impact, let’s break down what eSCL devices are. The eSCL protocol allows scanners to communicate over the network, enabling functions such as scanning documents directly to a PC or printing from a mobile device. This protocol supports a wide array of devices, including:
  • Multifunction printers: These combine the capabilities of printers, scanners, copiers, and sometimes fax machines.
  • Scanners: Standalone devices that digitize physical documents and images.
  • Network-enabled devices: Such as certain all-in-one printers and fax machines that connect to your network for remote access.
Given the prevalence of these devices in both home and business environments, the implications of the update pause resonate widely, particularly for IT administrators who may heavily rely on these functionalities for daily operations.

What’s Next for Affected Users?​

Microsoft has advised users against forcing the installation of the problematic update through tools like the Windows Installation Assistant or media creation tools. Instead, the company is recommending that users await a patch that addresses these concerns before proceeding with any updates.
For IT administrators keeping an eye on the situation, Microsoft has provided a safeguard ID (54762729) that can be referenced within Windows Update for Business reports to track the status of this issue.

Best Practices for Users:​

  • Delay Update Installation: If you haven't yet installed Windows 11 24H2 and are using eSCL-compatible devices, consider postponing the update.
  • Regular Backups: Always back up important files before proceeding with significant updates.
  • Stay Informed: Follow updates on the issue through official Microsoft channels or tech news websites.

Conclusion​

Microsoft's decision to halt the Windows 11 24H2 update underscores the importance of device compatibility and user experience in software upgrades. As users await a fix, the situation serves as a reminder of the complexities involved in maintaining the delicate balance between technological advancement and user reliability.
Keeping abreast of these developments is crucial for anyone relying on Windows systems for work or personal use. Have you experienced issues with peripheral recognition post-update? Share your experiences in the comments below; after all, knowledge is power in the tech world!

Source: Windows Report Microsoft stops the Windows 11 24H2 update because it can't recognize many scanners, printers and network devices
 


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