Windows11 Ssd Bug

Blog Post: Windows 11 Update Slows Down SSDs—Here’s What You Need to Know

Author: Alex Hutchinson | Act on Tech / Alex Custom Tech

Introduction

If your Windows 11 computer suddenly feels sluggish, the culprit might not be your imagination—or your hardware. A recent Windows 11 update has been linked to SSD performance slowdowns, leaving many users frustrated with longer boot times, sluggish apps, and slower file transfers. In this post, we’ll break down what’s happening, how to know if you’re affected, and what you can do to fix it.

What Happened?

Microsoft regularly pushes updates to improve Windows 11 security and stability. But in this case, one of the latest cumulative updates (KB series) introduced a bug that negatively impacts how SSDs handle read/write operations. Users have reported benchmark results showing drops of 40–50% performance after installing the update.

Both NVMe SSDs (the fast ones on newer machines) and SATA SSDs have been impacted, depending on configuration.

Signs You Might Be Affected

Here’s what to watch for:

• Boot times take noticeably longer than before.

• Apps that once opened instantly now feel laggy.

• File transfers or software installs are slower.

• Benchmark tools like CrystalDiskMark show lower-than-expected speeds.

What You Can Do Right Now

If you suspect your SSD performance dropped after a Windows 11 update, here are steps you can take:

1. Check Installed Updates

   • Go to Settings > Windows Update > Update History to see which KB patch was installed most recently.

2. Uninstall the Problematic Update

   • If the slowdown is severe, roll back or uninstall the latest update. Microsoft often follows up with hotfixes once enough users report issues.

3. Update SSD Firmware

   • Visit your SSD manufacturer’s website (Samsung, Crucial, WD, etc.) and check for firmware updates.

4. Pause Updates Temporarily

   • If performance is critical, pause Windows Updates for a week or two until Microsoft releases a fix.

5. Monitor Microsoft Patch Notes

   • Microsoft typically acknowledges widespread issues and provides fixes in subsequent patches.

Why This Matters for Businesses

For small businesses, unexpected performance issues like this can lead to lost productivity and frustration. Applying patches without testing can create downtime and affect workflows. That’s why we recommend:

• Testing updates on a non-critical machine first.

• Having a backup plan in case an update causes issues.

• Working with an IT provider like Alex Custom Tech to manage updates and minimize risk.

Final Takeaway

Windows updates are essential for security—but sometimes they come with unintended side effects. If your SSD feels slower after a Windows 11 update, don’t panic. Roll back the patch if needed, update your firmware, and keep an eye out for Microsoft’s fixes.

Need Help?If you’re struggling with Windows updates or want proactive IT support, reach out to Alex Custom Tech. Visit alexcustomtech.com, email us at info@alexcustomtech.com, or call 855-668-6315.

Stay productive, stay efficient, and keep acting on tech.