
A windows update error means Windows tried to download or install an update and something stopped it. The good news: almost every windows update error can be fixed at home. You do not need to reinstall Windows in most cases. This guide walks you through the fixes in order, starting with the simplest ones.
In this guide:
- Quick checks before you start
- Diagnose: what is your symptom?
- Fix 1 — Restart your PC and try again
- Fix 2 — Check your internet connection
- Fix 3 — Free up disk space
- Fix 4 — Fix a windows update error with the built-in troubleshooter
- Fix 5 — Clear the Windows Update cache
- Fix 6 — Repair system files with SFC and DISM
- Fix 7 — Check date, time, and region settings
- Fix 8 — Update drivers from the manufacturer’s website
- Fix 9 — Pause antivirus, VPN, and metered connections
- Fix 10 — Repair Windows without losing files
- What to avoid
- FAQ
- Conclusion
Quick checks before you start
Before you touch any settings, run through these quick checks. They take two minutes and solve many update failures on their own.
- Save your work. Some fixes need a restart. Save open files first.
- Write down the error code. Open Settings > Windows Update and note the exact error code (for example 0x80070057). It helps you pick the right fix later.
- Plug in your charger. Updates pause or fail on low battery. Laptops should be plugged into power.
- Back up important files. Fixes below are safe, but a backup is always smart before system changes.
- Check the clock on your screen. Note the time the update failed. If the problem repeats, pattern matters.
Diagnose: what is your symptom?
Use this table to match what you see with the most likely cause. Then jump to the fix shown.
| Symptom | Likely cause | Go to fix |
|---|---|---|
| Update fails with an error code right away | Corrupt update files or a blocked service | Fix 5 — clear the update cache |
| Update downloads but never installs | Damaged system files or a stuck service | Fix 6 — repair system files |
| Update freezes at a percentage (0%, 51%, 100%) | Network drop or full disk | Fix 2 — check connection, Fix 3 — free disk space |
| “We couldn’t install this update” message | Driver conflict or third-party software clash | Fix 8 — update drivers, Fix 9 — pause security software |
| Error 0x800f0922 | Not enough free disk space | Fix 3 — free disk space |
| Error 0x80070002 or 0x80070003 | Missing or corrupt update files | Fix 5 — clear the update cache |
| Update keeps failing after restart | Metered connection, VPN, or date/time issue | Fix 9 — check connection settings |
| PC crashes or blue screen during update | Incompatible driver | Fix 8 — update drivers |
| Every update fails, even small ones | Deep system corruption | Fix 10 — repair install |
Fix 1 — Restart your PC and try again
It sounds too simple. But a restart clears temporary glitches, stuck services, and locked files. Always start here.
- Close all open programs.
- Click Start > Power > Restart (not Shut down, which may use fast startup).
- After the restart, open Settings > Windows Update.
- Click Check for updates.
- Let the update try again. If it fails, note the new error code and continue to Fix 2.
Tip: If Windows offers Update and restart, choose that. It applies pending updates while restarting.
Fix 2 — Check your internet connection
Updates are large downloads. A weak or dropping connection is one of the top causes of a windows update error.

- Open Settings > Network & internet.
- Confirm you are connected to your Wi-Fi or Ethernet network.
- Open your browser and load a page. If the web is slow or dead, fix the network first.
- Restart your router: unplug it for 30 seconds, plug it back in, and wait two minutes.
- If you are on public or hotel Wi-Fi, switch to a private network. Some public networks block update servers.
- Go back to Settings > Windows Update and click Check for updates.
Tip: Use Ethernet if you can. A cable connection removes Wi-Fi drops from the picture entirely.
Fix 3 — Free up disk space
Windows needs room to download and unpack updates. Feature updates can need 10–20 GB of free space. A full drive is a very common reason for a windows update error.

- Open Settings > System > Storage and check free space on your system drive (C:).
- If space is low, open Settings > System > Storage > Cleanup recommendations.
- Tick Temporary files, then click Clean up.
- Delete files you no longer need from Downloads, Videos, and old installers.
- Uninstall programs you do not use: Settings > Apps > Installed apps.
- Move large photos and videos to an external drive or cloud storage.
- Restart your PC, then check for updates again.
Tip: Error 0x800f0922 almost always means low disk space. Free at least 20 GB before retrying.
Fix 4 — Fix a windows update error with the built-in troubleshooter
Windows includes a tool that finds and fixes update problems automatically. It resets the update service, checks for broken files, and repairs common misconfigurations.

- Open Settings > System > Troubleshoot.
- Click Other troubleshooters.
- Find Windows Update in the list and click Run.
- Wait while the tool scans. Follow any on-screen prompts.
- When it finishes, restart your PC.
- Open Settings > Windows Update and click Check for updates.
Microsoft keeps a full list of these built-in helpers in its official Windows troubleshooters guide. It is worth bookmarking if you troubleshoot PCs often.
Fix 5 — Clear the Windows Update cache
Windows stores downloaded updates in a folder called SoftwareDistribution. If those files are corrupt, every retry fails the same way. Clearing the cache forces Windows to download fresh copies. This fixes many update failures.

- Press Win + R, type
services.msc, and press Enter. - Find Windows Update in the list. Right-click it and choose Stop.
- Open File Explorer and go to
C:\Windows\SoftwareDistribution\Download. - Select all files in the Download folder and delete them. (Do not delete the folder itself.)
- Go back to the Services window. Right-click Windows Update and choose Start.
- Open Settings > Windows Update and click Check for updates.
If you notice that updates stuck downloading behave differently — frozen progress bars rather than error codes — we cover that exact problem in its own guide.
Fix 6 — Repair system files with SFC and DISM
Damaged Windows files can block updates completely. Two free built-in tools, SFC and DISM, scan and repair them. Run both in this order.
- Press Start, type
cmd, right-click Command Prompt, and choose Run as administrator. - Type this command and press Enter:
DISM.exe /Online /Cleanup-image /Restorehealth
- Wait. This scan can take 10–30 minutes. Do not close the window.
- When it finishes, type this command and press Enter:
sfc /scannow
- Wait again until it reaches 100%.
- Restart your PC.
- Open Settings > Windows Update and try the update once more.
Tip: DISM repairs the image SFC works from, so running DISM first makes the SFC scan more effective.
Fix 7 — Check date, time, and region settings
This one surprises people. Windows Update talks to secure servers. If your PC clock is wrong, the security check fails and the update is refused with a windows update error.
- Open Settings > Time & language > Date & time.
- Turn on Set time automatically.
- Turn on Set time zone automatically.
- Click Sync now.
- Check that your region is correct under Time & language > Language & region.
- Restart your PC and check for updates.
Tip: A dead motherboard battery can reset the clock on every boot on older PCs. If the time keeps going wrong, the battery may need replacing.
Fix 8 — Update drivers from the manufacturer’s website
Outdated or broken drivers — especially network, storage, and graphics drivers — can cause an update to fail mid-install. Always get drivers from the manufacturer, never from “driver updater” utilities.
- Press Win + X and choose Device Manager.
- Look for any device with a yellow warning triangle. Right-click it and choose Update driver > Search automatically for drivers.
- For your most important drivers (graphics, Wi-Fi, chipset), visit the official website of your PC or motherboard maker.
- Download only the driver for your exact model and Windows version.
- Install the driver and restart your PC.
- Try the Windows update again.
Warning: Never install drivers from random download sites or pop-up “driver booster” tools. They can install malware or the wrong driver and make things worse. Stick to official sources like Microsoft and the device manufacturer.
Fix 9 — Pause antivirus, VPN, and metered connections
Security software and network filters sometimes block update servers. This step tests whether something on your side is blocking the download.
- Metered connection: Go to Settings > Network & internet > Wi-Fi, click your network, and turn off Metered connection.
- VPN: Disconnect your VPN completely and try the update without it.
- Antivirus: If you use third-party antivirus, open it and pause protection for 15 minutes. (Windows Defender usually does not block updates.)
- Proxy: Go to Settings > Network & internet > Proxy and make sure nothing unexpected is turned on.
- Try Settings > Windows Update > Check for updates again.
- Turn your protection back on right after the test, whether it worked or not.
Warning: Do not leave your antivirus disabled. Re-enable it as soon as the update finishes or the test is done.
Fix 10 — Repair Windows without losing files
If nine fixes failed, do not give up. Windows 11 has a repair option that reinstalls the current version and keeps your personal files. This fixes deep corruption that the other tools cannot reach.
- Open Settings > System > Recovery.
- Look for Fix problems using Windows Update.
- Click Reinstall now and follow the prompts.
- Keep your PC plugged in and connected to the internet during the process.
- The process can take 30–60 minutes. Your files stay in place.
- After it finishes, open Settings > Windows Update and check for updates.
If this option is missing on your PC, download the Windows 11 Installation Assistant or a disc image from Microsoft’s official website. Microsoft’s complete update troubleshooting reference documents this and the other advanced steps in full detail.
Still stuck after all ten fixes? Browse our Windows 11 system recovery guides for deeper repair topics, or check the blog for new troubleshooting articles. The team at TechSBSInfo publishes fresh fixes every week.
What to avoid
These mistakes turn a small update problem into a big one. Steer clear of all of them.
- Do not delete system folders by hand. Only clear the SoftwareDistribution cache as shown in Fix 5.
- Do not use “driver updater” or “PC optimizer” tools. They cause more errors than they fix. Use official manufacturer drivers only.
- Do not disable Windows Update permanently. You will miss security patches and the problem will get worse.
- Do not download Windows from unofficial sites. Cracked installers and activators often carry malware.
- Do not edit the Registry unless a trusted guide tells you to. One wrong key can stop Windows from booting.
- Do not force-shutdown during an update install. Interrupting the install mid-way corrupts files. Wait, even if the percentage looks stuck.
- Do not run “cleaner” tools that promise to fix update errors. Most do nothing useful and some delete files you need.
FAQ
Why does my windows update error keep coming back after every restart?
The failed update files are still in the cache. Windows retries the same broken download each time. Clear the update cache with Fix 5 so Windows downloads fresh files.
Is it safe to delete the SoftwareDistribution folder contents?
Yes, if you stop the Windows Update service first, as shown in Fix 5. Windows rebuilds the folder automatically. Do not delete the Windows folder itself.
How long should I wait before assuming an update is stuck?
Small updates usually finish in 10–20 minutes. Large feature updates can take over an hour on slower PCs. Wait at least 60 minutes with no percentage change before calling it stuck.
Can a windows update error damage my files?
The error itself rarely touches your files. The risk comes from force-shutting down mid-install. Save your work, keep backups, and let the install finish or fail on its own.
Should I use the Windows Update troubleshooter or fix it manually?
Always run the troubleshooter first (Fix 4). It is fast and automatic. Go manual only if it does not solve the problem.
What if nothing in this guide works?
Back up your files and use the repair option in Fix 10. If the PC will not boot at all, create Windows installation media on another PC and choose the repair option. As a last resort, a clean install from official Microsoft media always works.
Conclusion
A windows update error is frustrating, but it is rarely serious. Start with a restart and a connection check. Move on to the troubleshooter and cache clearing. Repair system files if needed. One of these ten fixes resolves the vast majority of update failures. Keep your drivers official, your disk roomy, and your antivirus on — and future updates will go through smoothly.
