How to Fix Windows Update Problems and Errors

Windows updates failing, causing blue screens, or breaking features? Learn how to troubleshoot update errors, roll back bad updates, and manage updates safely.

Published 2026-02-04 by TechNet New England

Windows Update is essential for security and stability, but it's also one of the most common sources of problems. Updates can fail to install with cryptic error codes, cause blue screens after installation, break features you rely on, or get stuck in an endless "Preparing to install" loop. Here's how to handle the most common Windows Update issues.

The Best Update Strategy: Delay After Patch Tuesday

Before we get into fixing problems, here's how to avoid them in the first place. Microsoft releases updates on the second Tuesday of every month (known as "Patch Tuesday"). These updates occasionally have bugs that get fixed in the following days. A practical approach is to delay updates by one to two weeks so other people find the problems first.

  1. Open Settings > Windows Update
  2. Click "Pause updates" and select 1-2 weeks
  3. After the pause period, let updates install normally

This gives you the security updates you need while avoiding the worst day-one bugs.

Fix 1: Run the Windows Update Troubleshooter

Start with the built-in troubleshooter. It's not magic, but it catches common issues like a stopped update service or corrupted download cache.

  1. Open Settings > System > Troubleshoot > Other troubleshooters
  2. Find "Windows Update" and click "Run"
  3. Follow the prompts and let it attempt repairs
  4. Restart your computer and try updating again

Fix 2: Clear the Windows Update Cache

Sometimes update files get partially downloaded or corrupted. Clearing the cache forces Windows to download fresh copies.

  1. Open Command Prompt as Administrator
  2. Stop the update services by running these commands one at a time:

net stop wuauserv

net stop bits

net stop cryptSvc

  1. Rename the download cache folder:

ren C:\Windows\SoftwareDistribution SoftwareDistribution.old

  1. Restart the services:

net start wuauserv

net start bits

net start cryptSvc

  1. Try running Windows Update again

After confirming updates work, you can delete the SoftwareDistribution.old folder to free up space.

Fix 3: Run SFC and DISM

Corrupted system files are a common reason for update failures. Open Command Prompt as Administrator and run:

sfc /scannow

Wait for it to complete, then run:

DISM /Online /Cleanup-Image /RestoreHealth

DISM connects to Windows Update to download clean copies of corrupted files, so make sure you're connected to the internet. Restart and try updating again.

Fix 4: Manually Install a Stuck Update

If a specific update keeps failing, you can download and install it manually from Microsoft's Update Catalog.

  1. Note the KB number of the failing update (e.g., KB5034441) from Settings > Windows Update > Update history
  2. Go to catalog.update.microsoft.com in your browser
  3. Search for the KB number
  4. Download the version that matches your system (x64 for most modern PCs)
  5. Run the downloaded file and follow the installation prompts

This bypasses the normal Windows Update mechanism and often succeeds when automatic installation fails.

Fix 5: Roll Back a Bad Update

If an update installed successfully but caused problems (blue screens, broken features, performance issues), you can uninstall it.

  1. Open Settings > Windows Update > Update history
  2. Scroll down and click "Uninstall updates"
  3. Find the problematic update (sort by date to find the most recent one)
  4. Click "Uninstall" next to it
  5. Restart your computer

If Windows won't boot at all after an update, you can access recovery options:

  1. Force-restart your PC three times in a row during boot (hold the power button when you see the Windows logo). This triggers Automatic Repair
  2. Go to Advanced options > Troubleshoot > Advanced options > Uninstall updates
  3. Choose "Uninstall latest quality update" or "Uninstall latest feature update"

Fix 6: Common Error Codes and What They Mean

If these steps don't resolve the issue, or if you'd like professional help, our team is here. Contact TechNet New England for IT support.