Outlook Freezing Bug Fixed: Key Updates and Workarounds

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If you've ever been mid-email and felt the pangs of productivity grinding to a halt due to an unresponsive Outlook, you're going to love this news. Microsoft has just resolved a major headache for users of the classic Outlook email client. Specifically, they’ve patched a bug that caused Outlook to freeze up like a Windows XP computer circa 2007 whenever users tried to copy text using the trusty CTRL+C keyboard shortcut. Here’s what happened, what’s been fixed, and how you can deal with the issue if you’re still affected.

The Nitty-Gritty: What Was the Outlook Bug?​

This bug primarily affected Microsoft 365 users on the Current Channel Version 2409 (Build 18025.20096) or higher, especially those utilizing languages that require an Input Method Editor (IME). IME is commonly used for typing in languages like Japanese, Korean, or Chinese, making this a particularly disruptive issue for users in regions where these languages are prominent.
The problem? Whenever users highlighted text in an email and hit CTRL+C to copy it, Outlook would freeze or become completely unresponsive. Remember how infuriating it was when you accidentally clicked "Reply All" on a company-wide email by mistake? Yeah, this bug was kind of on that level of annoyance—except it didn’t go away with an awkward apology email.
Microsoft first acknowledged the issue back in November 2024, but it took until now for a permanent fix to roll out to all affected users.

What Has Microsoft Done to Fix It?​

The Fix is Here (For Most Channels)

Microsoft has developed and released an update to address the issue. Here’s the rollout schedule:
  • Beta Channel Users: Good news—this bug has already been crushed in Version 2501 (Build 18410.15040). Beta users were the first to receive the fix as part of Microsoft’s strategy to test updates on a smaller audience before wider release.
  • Current Channel Preview Users: Sit tight! The fix should roll out by late January 2025.
  • Current Channel Users: Look for Version 2501 (Build 18429.20000), which is slated to hit your devices around January 27, 2025.
  • Monthly Enterprise Channel Users: Enterprise customers operating on a slower, more methodical update cycle will receive the fix on March 11, 2025.
It’s worth noting that Microsoft generally uses these staggered release plans to ensure stability and prevent new bugs from cropping up.

What if You’re STILL Affected? Workarounds to Stay Productive​

For those who haven’t yet received the update—or who are deliberately avoiding updates for specific compatibility reasons—Microsoft has provided some temporary fixes to keep Outlook functional. Here’s what they recommend:

Option 1: Roll Back the Input Method Editor (IME)

  1. Open the Settings app on your Windows machine.
  2. Use the search bar to locate IME Settings—this will vary based on your language settings.
  3. Navigate to the General section of your language’s IME settings.
  4. Look for the option to “Use previous version of Microsoft IME” and toggle it on.
This essentially reverts you to an earlier, bug-free version of the IME. Just remember, it might lack some newer features.

Option 2: Downgrade Outlook to a Previous Build

Sometimes, the only way forward is backward. Microsoft allows users to roll back to older (and hopefully stable) versions of their apps. Here’s how to do it:
  1. Open Command Prompt: Search for it in the Windows search bar, right-click the result, and run it as an administrator.
  2. Enter the following commands one by one:
    Code:
       cd %programfiles%\Common Files\Microsoft Shared\ClickToRun
    
       officec2rclient.exe /update user updatetoversion=16.0.17928.20156
  3. Hit Enter after each line and follow the on-screen prompts.
By doing this, you’ll revert to a pre-bug build of Outlook. While it’s a bit of a hack, it’s lifesaving for users who rely heavily on copy-paste functionality.

The Bigger Picture: Why Do Bugs Like This Happen?​

Software bugs aren’t just an inconvenience—they’re an almost inevitable part of the development lifecycle. In this case, the freezing issue seems to stem from a complex interaction between the IME and the way Outlook processes text input in certain languages. It’s a frustrating example of how even minor updates or compatibility tweaks can ripple into larger issues.
The situation also underscores how important it is to keep your software up to date. While bugs are inevitable, so are patches—Microsoft’s organized channel system ensures that updates are tested and deployed methodically.

Let’s Talk Bugs: Microsoft’s Rocky 2024

To provide some context, this isn’t the first time Microsoft has had to scramble to fix Outlook issues. In August 2024, they temporarily patched a series of crashes linked to Gmail account sign-ins. September brought another round of headaches as Microsoft 365 apps—including Outlook, Word, and Excel—crashed when users typed or used spell-check. Microsoft has shown a consistent willingness to patch problems, but the frequency of these issues has raised eyebrows among IT pros and everyday users alike.

Key Takeaways for Users​

For now, here’s what you should know and do:
  • If You’re on the Beta Channel: Smile. You probably don’t have this problem anymore.
  • On Other Channels? Check your Outlook version and keep an eye out for updates later this month or before March.
  • Stuck Without the Fix? Temporary solutions like reverting IME settings or downgrading Outlook can hold you over until an update reaches your device.

Wrapping Up: A Win for Users—and a Lesson in Patience​

While bugs like this can make you want to throw your computer out a window (especially if that window is running Outlook), Microsoft’s responsiveness is encouraging. The company has acted relatively quickly—two months isn’t bad in the software world—and has shown a commitment to clear communication and practical workarounds in the meantime.
For those affected, hang tight—the fix is on its way. For everyone else, this is yet another reminder to stay vigilant about updates and take advantage of backup solutions when they’re available. After all, software may cause you headaches, but staying informed can be your Tylenol.
Got thoughts or frustrations about this bug? Share your experiences in the comments and let’s chat about troubleshooting and Microsoft’s plans for meticulous patching. After all, we’ve all been there at some point: battling bugs, hunting for fixes, and patiently waiting for that sweet, sweet update to roll in.

Source: BleepingComputer Microsoft fixes bug causing Outlook to freeze when copying text