A genuinely stuck Windows Update is usually a corrupted update cache, not a sign of a bigger problem. Before assuming the worst, work through these in order.

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1. Wait longer than feels reasonable

Large feature updates can genuinely sit at the same percentage for 20-30 minutes during certain stages — this isn't always actually stuck. Give it real time before intervening, especially if disk activity (check Task Manager's disk usage) shows it's still working.

2. Run the Windows Update Troubleshooter

Go to Settings > System > Troubleshoot > Other troubleshooters and run Windows Update. It automatically detects and fixes many common causes of stuck or failed updates without you needing to know what's actually wrong.

3. Restart the Windows Update service

Open Services (search from the Start menu), find Windows Update, right-click and choose Restart. If it's already stopped, start it instead. This resolves updates that appear stuck because the underlying service itself has stalled.

Tip: if a download appears stuck specifically at "Downloading," check your internet connection isn't the bottleneck — large updates can look frozen on a slow or unstable connection when they're actually just crawling along.

4. Clear the Software Distribution folder

This folder stores downloaded update files, and a corrupted file here is a very common cause of stuck or repeatedly failing updates.

  1. Stop the Windows Update service (Services app, as above).
  2. Go to C:\Windows\SoftwareDistribution and delete the contents of the Download folder.
  3. Restart the Windows Update service.
  4. Try the update again — Windows redownloads what it needs.

5. Run DISM and SFC scans

Open Command Prompt as administrator and run DISM /Online /Cleanup-Image /RestoreHealth, followed by sfc /scannow once it completes. These repair underlying system file corruption that can silently block updates from installing correctly.

6. If it's frozen mid-install, don't force a shutdown immediately

Forcing a power-off during an active install can cause more serious problems than the stuck update itself. If it's genuinely frozen (no disk activity, no progress for over an hour), only then consider a forced restart, and expect Windows to attempt a rollback on the next boot — that's normal.

The bottom line

Most stuck updates are a corrupted download cache, not a sign of deeper corruption. Clearing the SoftwareDistribution folder resolves the majority of genuinely stuck updates.