Windows Update Won't Install? 7 Fixes

Windows Update is one of the most frustrating parts of Windows. It works for years without trouble, then suddenly gets stuck at 47% for hours, or throws cryptic error codes like 0x80070002 that mean nothing to a normal human.

Here's the real list of fixes, in the order that solves the most cases. Skip to whichever fits your situation.

1. Wait longer than you think you need to

Real talk: 90% of "stuck" Windows updates aren't actually stuck. Large feature updates can take 2-4 hours total, and the progress bar can sit at a percentage for 30+ minutes between visible jumps. Before assuming it's broken:

• Wait at least 2 hours with no progress before declaring it stuck
• Check that your internet is working
• Check that the hard drive light is still blinking (it's working in the background)

2. Run the Windows Update Troubleshooter

Microsoft built a fixer specifically for this. Most people don't know it exists.

Windows 11: Settings > System > Troubleshoot > Other troubleshooters > Windows Update > Run

Windows 10: Settings > Update & Security > Troubleshoot > Additional troubleshooters > Windows Update

It runs for 5-10 minutes, finds common problems, fixes what it can, and reports the rest. Run it, then try the update again.

3. Free up disk space

Windows updates need a surprising amount of free space, especially the big feature updates. If you have less than 20 GB free, that's likely your problem.

1. Open Settings > System > Storage
2. Turn on Storage Sense
3. Click Cleanup recommendations > pick anything safe to remove (temp files, old downloads, previous Windows installations)

Aim for at least 30 GB free before retrying a big update.

4. Pause and resume updates

Sometimes Windows Update just gets confused. Pausing and resuming forces it to start fresh.

1. Settings > Windows Update
2. Click Pause updates for 1 week
3. Restart the computer
4. Come back to Settings > Windows Update and click Resume updates
5. Check for updates again

5. Restart Windows Update services

For stubborn cases, manually restarting the services that handle updates often works.

1. Press Windows Key + R, type services.msc, press Enter
2. Find Windows Update, right-click, pick Stop
3. Also stop Background Intelligent Transfer Service (BITS) and Cryptographic Services
4. Open File Explorer, navigate to C:\Windows\SoftwareDistribution
5. Delete everything inside that folder (Windows will rebuild it)
6. Go back to services.msc, right-click each of the three services and pick Start
7. Restart your computer and check for updates

This is more technical but works when the troubleshooter doesn't.

6. Download the update manually

If a specific update keeps failing, you can download and install it directly from Microsoft.

1. Note the KB number of the failing update (something like "KB5034441")
2. Go to the Microsoft Update Catalog
3. Search for the KB number
4. Download the version that matches your system (usually x64 for modern PCs)
5. Run the downloaded file to install

This bypasses Windows Update entirely and installs the update directly.

7. As a last resort: in-place upgrade

If nothing else works, you can reinstall Windows on top of itself without losing your files or programs. This refreshes the system files that Windows Update needs.

For Windows 11:

1. Go to Microsoft's Windows 11 download page
2. Download the Windows 11 Installation Assistant
3. Run it
4. Pick the option to keep personal files and apps when prompted

This takes about an hour but fixes deep Windows Update issues without losing anything.

Common error codes and what they actually mean

• 0x80070002 or 0x80070003: Missing files. Run the troubleshooter, then try again.
• 0x80073712: Corrupted update files. Clear the SoftwareDistribution folder (Step 5).
• 0xC1900101: Driver issue. Update or temporarily uninstall third-party antivirus and try again.
• 0x800F0922: Reserved partition issue. More technical fix, may need professional help.
• 0x80240022: Internet connection problem. Restart your router.

Video walkthrough

Video by Britec09 on YouTube