A Windows 11 PC that becomes slow after an update is a common frustration — and it’s usually temporary. In most cases, Windows is still processing update-related tasks in the background and performance returns to normal within a few hours. If it doesn’t, these fixes will resolve it.
Wait and Restart First
Immediately after a Windows update, several background processes run — indexing, optimising drives, configuring new components. Performance can be noticeably slower for 30 minutes to a few hours. If the slowness appeared just after an update, restart your PC and give it another hour before troubleshooting further.
1. Check What’s Using Your Resources
Open Task Manager (Ctrl + Shift + Esc) and click the CPU and Disk columns to sort by usage. Common post-update culprits:
- Windows Update (svchost.exe) — still downloading or installing additional components
- Windows Search (SearchIndexer.exe) — rebuilding its index after the update
- Antivirus — scanning new files introduced by the update
If any of these are high, wait for them to finish. They will complete on their own.
2. Roll Back the Update
If performance is severely degraded and doesn’t improve, rolling back the update restores the previous Windows version:
- Go to Settings → Windows Update → Update history
- Click Uninstall updates
- Find the most recent update and click Uninstall
For major feature updates (not monthly patches), you have a 10-day rollback window: go to Settings → System → Recovery → Go back. After 10 days, this option is removed.
3. Update Your Drivers
A Windows update can sometimes replace manufacturer drivers with older generic versions, which hurts performance — especially for graphics and storage. After a major update, check:
- GPU driver — go to Nvidia/AMD/Intel’s website and install the latest
- Chipset/storage driver — from your motherboard or laptop manufacturer’s website
4. Disable Startup Programs
Updates sometimes re-enable startup programs that were previously disabled. Check them again:
- Open Task Manager → Startup apps tab
- Disable anything with High or Medium startup impact that you don’t need
5. Run the Performance Troubleshooter
- Go to Settings → System → Troubleshoot → Other troubleshooters
- Run Windows Store Apps and Search and Indexing troubleshooters if available
6. Reset the Windows Update Components
If updates are causing repeated slowness, corrupted update files may be the cause. Open Command Prompt as Administrator and run:
net stop wuauserv
net stop cryptSvc
net stop bits
net stop msiserver
ren C:\Windows\SoftwareDistribution SoftwareDistribution.old
net start wuauserv
net start cryptSvc
net start bits
net start msiserverRestart after running these commands. Windows will recreate the update cache fresh.
7. Check for a Follow-Up Update
Microsoft often releases a follow-up patch within days of a problematic update. Go to Settings → Windows Update → Check for updates and install anything available. This frequently resolves performance issues introduced by the previous update.
