The progress bar hasn’t moved in an hour, a cryptic error code keeps flashing, or the same update fails in a loop. I have hit all three on my own Windows 11 desktop, and the fix was never a reinstall. *Windows Update not working on Windows 11 is almost always a corrupted cache, a stalled service, or a clock that drifted out of sync — every one fixable with tools already on your PC.*
Below is the exact order I work through, starting with the 60-second checks and escalating only if they fail. No downloads, no paid “optimizer” tools, no command-line risk until you actually need it.
## Quick Answer
Open Settings > Windows Update and click Retry, then run the built-in Troubleshooter under System > Troubleshoot > Other troubleshooters. For stubborn failures, stop the Windows Update service, delete everything inside C:\Windows\SoftwareDistribution\Download, and restart. That clears the corrupted cache behind most stuck updates.
## Why does Windows Update fail on Windows 11?
Windows Update relies on background services, a local download cache, and a live link to Microsoft’s servers. Break any link in that chain and the update stalls:
– **Corrupted update cache** — partially downloaded files confuse the updater.
– **Stopped Windows Update service** — it sometimes crashes silently.
– **Not enough disk space** — updates need roughly 5–10 GB free to download and unpack.
– **Wrong system date or time** — breaks the server’s security handshake.
– **Paused updates** — Windows 11 lets you pause for up to 5 weeks, and it is easy to forget.
Most failures trace back to a stale cache or a service that quietly stopped, not to broken hardware.
*Most failures trace to software, not hardware — which is why the tools on your PC fix them.*
## How do you do the two-minute checks first?
Before touching the command line, I clear the easy causes. These three take under two minutes combined and resolve a surprising number of cases.
### Retry and confirm your connection
1. Open a browser and confirm you are actually online.
2. Go to Settings > Windows Update.
3. Click Check for updates or Retry.
A dropped connection mid-download is a common culprit. When I am pulling a large feature update, I switch from Wi-Fi to a wired Ethernet cable — Wi-Fi drops during a big download often corrupt the file. If your connection itself is unstable, sorting that out first saves you repeating every fix below.
### Make sure updates are not paused
1. Go to Settings > Windows Update.
2. Look for a Resume updates button near the top.
3. Click it if it is there, then click Check for updates.
I have lost ten minutes troubleshooting before noticing I had paused updates myself weeks earlier. Check this first.
### Run the Windows Update Troubleshooter
1. Open Settings (Win + I).
2. Go to System > Troubleshoot > Other troubleshooters.
3. Find Windows Update and click Run.
4. Follow the prompts, restart, then try updating again.
Even when it reports that it “couldn’t fix the problem,” it often silently restarts a blocked service. I always retry Windows Update afterward regardless of what it says.
*These three checks fix paused updates, flaky connections, and broken services without any risk.*
## How do you clear the Windows Update cache?
Corrupted files in the cache are the single most common cause of stuck or looping updates. Clearing them forces Windows to fetch a clean copy. This is the fix that solved my own looping update last year.
1. Press Win + R, type services.msc, and press Enter.
2. Find Windows Update, right-click it, and choose Stop.
3. Do the same for Background Intelligent Transfer Service (BITS).
4. Open File Explorer and go to C:\Windows\SoftwareDistribution\Download.
5. Press Ctrl + A to select all files and delete them. Leave the folder itself in place.
6. Return to Services and start Windows Update and BITS again.
7. Go to Settings > Windows Update and click Check for updates.
If you hit a “file in use” error while deleting, restart your PC and delete the files before opening any other program. For the deeper details on how Windows resets these components, Microsoft’s own Windows Update troubleshooting guide documents the service names and folders.
*Clearing the download cache fixes the majority of stuck and looping updates on its own.*
## How do you repair the update engine with SFC and DISM?
Corrupted system files can silently break the update engine. Two command-line tools repair them, and the order matters.
1. Search for cmd, right-click Command Prompt, and choose Run as administrator.
2. Type sfc /scannow and press Enter. This takes 10–15 minutes.
3. When it finishes, stay online and type DISM /Online /Cleanup-Image /RestoreHealth, then press Enter.
4. Restart your PC and try Windows Update again.
I run SFC first because it flags the corrupt files, then DISM downloads clean replacements from Microsoft’s servers to repair what SFC could not. Reversing the order wastes a pass. These same tools repair the system files behind unrelated breakage too, like a Windows 11 PC that freezes randomly.
*SFC and DISM together repair the underlying files that block updates from finishing.*
## What do you do for date, time, and disk space errors?
Two quieter causes produce failures with no useful error message at all: a drifted clock and a full drive.
### Fix the system clock
1. Right-click the taskbar clock and choose Adjust date and time.
2. Turn on Set time automatically and Set time zone automatically.
3. Click Sync now, then retry Windows Update.
An off clock breaks the security handshake with Microsoft’s servers, and the update simply fails without explaining why.
### Free up disk space
1. Go to Settings > System > Storage.
2. Click Temporary files, select what is safe to remove, and click Remove files.
3. Search for Disk Cleanup in the Start menu, run it, and check Windows Update Cleanup.
Updates fail silently when there is no room to unpack them. If your drive is nearly full, my guide on how to free up disk space on Windows 11 walks through reclaiming gigabytes safely, or move large videos and downloads to an external drive before retrying.
*Syncing the clock and freeing a few gigabytes resolves the failures that show no error code at all.*
## Which fix should you try first?
Work top to bottom. Each row is ordered by how fast and how likely it is to help.
| Fix | Best for | Time needed | Difficulty |
|---|---|---|---|
| Retry / Resume | Paused updates or minor glitches | 1 min | Easy |
| Troubleshooter | Most common errors | 5 min | Easy |
| Date/time sync | Auth errors with no clear cause | 2 min | Easy |
| Clear update cache | Stuck or looping updates | 10 min | Moderate |
| Free disk space | “Not enough space” errors | 10–15 min | Easy |
| SFC + DISM | Persistent error codes | 30–60 min | Moderate |
*Start at the top, retry an update after each step, and stop the moment one works.*
## What mistakes make Windows Update worse?
A few habits turn a stuck update into a corrupted install or send you chasing the wrong fix. Avoid these while you work through the steps above.
– **Turning off the PC mid-install.** Interrupting an update that is actively installing, not just downloading, can corrupt Windows. Watch for drive activity before giving up.
– **Ignoring error codes.** Codes like 0x80070002 or 0x800f0922 each point to a specific fix. Search the exact code rather than guessing.
– **Deleting the SoftwareDistribution folder itself.** Only delete the files inside C:\Windows\SoftwareDistribution\Download. The folder must remain.
– **Updating over a metered connection.** Windows 11 blocks large updates on metered connections like mobile hotspots. Go to Settings > Network and disable “Metered connection” temporarily.
– **Skipping restarts.** Most fixes only take effect after a full reboot. Do not assume a fix failed before you have restarted.
*Avoid these five habits and you stop turning a stalled update into a bigger repair job.*
## Frequently Asked Questions
### Why does Windows 11 say “Update failed” with no explanation?
It is almost always a corrupted cache or a stopped service. Run the Troubleshooter first, then clear the cache if that does not resolve it. On my own PC, an “Update failed” with no code cleared the moment I emptied the SoftwareDistribution\Download folder and restarted.
### How long should a Windows 11 update take?
Security updates usually take 5–20 minutes; major feature updates can run 30–90 minutes. If the same percentage has not changed in over two hours with no drive activity, a restart is safe. I once let a feature update sit at 61% for 40 minutes before the drive light confirmed it was still writing.
### What does Windows Update error 0x80070005 mean?
It is a permissions error, usually a third-party antivirus blocking the update. Temporarily disable the antivirus, retry, then re-enable it. When this hit a friend’s laptop, adding Windows Update to the antivirus exclusion list stopped it from recurring.
### Can I manually download Windows 11 updates?
Yes. Visit the Microsoft Update Catalog at catalog.update.microsoft.com and search for the KB number shown in Windows Update. I keep this open as a fallback when the automatic updater keeps failing on one specific KB while everything else installs fine.
### Will clearing SoftwareDistribution delete my personal files?
No. It only removes Windows Update’s temporary download files, never your documents, photos, or installed apps. I have done it dozens of times and have never lost a single personal file.
## Conclusion
Windows Update not working on Windows 11 is almost always fixable with the tools already on your PC. Start with the Troubleshooter and cache clear; those two alone solve most cases, and SFC plus DISM handle the stubborn ones.
Once updates are flowing again, keep the momentum and check my guide on how to speed up a slow Windows 11 PC for the next step.