If you’re encountering the 0x800705b4 error during Windows Update, it can prevent your system from installing important updates, leaving your PC vulnerable or missing out on new features. Fortunately, this error is fixable with a series of straightforward troubleshooting steps. Before starting, ensure you have a stable internet connection and administrator rights on your Windows device, as these are essential for many fixes. This guide walks you through clear, actionable steps to resolve the error efficiently, along with tips, common mistakes to avoid, and troubleshooting advice if things don’t go as planned.
What You’ll Need
- Stable internet connection
- Administrator access to your Windows PC
- Some time to perform troubleshooting steps
Step-by-Step
- Restart Your Computer
Begin by restarting your PC. Sometimes, a simple reboot can resolve temporary glitches affecting Windows Update. Save all work, close applications, and reboot. After restarting, try running Windows Update again to see if the error persists.
- Run the Windows Update Troubleshooter
Windows includes a built-in troubleshooter designed to identify and fix common update problems. To run it:
- Open Settings by pressing Windows key + I.
- Navigate to Update & Security > Troubleshoot.
- Select Additional troubleshooters.
- Click on Windows Update and then Run the troubleshooter.
- Follow on-screen instructions. The tool will scan for issues and attempt automatic fixes.
- Reset Windows Update Components Manually
If the troubleshooter doesn’t resolve the issue, reset Windows Update components manually:
- Open Command Prompt as administrator. To do this, right-click the Start button and select Command Prompt (Admin) or Windows PowerShell (Admin).
- Stop the Windows Update services by typing:
net stop wuauserv net stop bits
- Rename the SoftwareDistribution and Catroot2 folders, which store update files:
ren C:\Windows\SoftwareDistribution SoftwareDistribution.old ren C:\Windows\System32\catroot2 Catroot2.old
- Restart the services:
net start wuauserv net start bits
- Close the Command Prompt and retry Windows Update.
- Check for Corrupted System Files
Corrupted system files can interfere with updates. Use the System File Checker:
- Open Command Prompt as administrator.
- Type:
sfc /scannow
- Press Enter and wait for the scan to complete. Follow any prompts to fix issues.
- Use the DISM Tool
If SFC doesn’t fix the problem, run the Deployment Image Servicing and Management (DISM) tool:
- Open Command Prompt as administrator.
- Type:
DISM /Online /Cleanup-Image /RestoreHealth
- Press Enter and wait for the process to finish. Then, rerun the SFC scan.
- Download and Install Updates Manually
If automatic updates still fail, manually download the latest updates:
- Visit the Microsoft Update Catalog website.
- Search for the specific KB number of the update you need.
- Download the appropriate version for your system.
- Run the installer and follow prompts.
Common Mistakes
- Ignoring system file corruption or not running SFC and DISM tools.
- Attempting to update without administrator privileges.
- Skipping the restart after each troubleshooting step, which can prevent fixes from taking effect.
- Manually deleting system files or folders without proper guidance, risking further issues.
- Using incompatible or outdated drivers that can block updates.
Tips
- Always back up important data before performing advanced fixes.
- Ensure your Windows is up to date with the latest service packs and updates.
- Disable third-party antivirus temporarily, as it can interfere with Windows Update.
- Keep your device drivers updated, especially for network adapters.
- Check your internet connection stability; unstable connections can cause update failures.
- Run Windows Update in Safe Mode if persistent issues occur.
Troubleshooting
If the error persists despite following these steps, consider the following troubleshooting options:
- Check Disk Space: Make sure your drive has sufficient space for updates. Clear unnecessary files if needed.
- Disable VPN and Proxy: Network configurations can block update servers. Disable VPNs or proxies temporarily.
- Perform a Clean Boot: Disable all non-Microsoft services and startup items to eliminate software conflicts. To do this:
- Press Windows key + R, type msconfig, and press Enter.
- Go to Services tab, check ‘Hide all Microsoft services,’ then click Disable all.
- Switch to Startup tab, click Open Task Manager, and disable all startup items.
- Restart your PC and try updating again.
- Reset Your PC: As a last resort, reset Windows to factory settings, keeping your files or performing a clean install, if necessary.
Persistent issues may also require professional support or contacting Microsoft Support for advanced diagnostics.
Frequently Asked Questions
1. What causes the 0x800705b4 error in Windows Update?
This error typically results from corrupted system files, network issues, outdated drivers, or conflicts with security software.
2. Is it safe to manually delete update files to fix this error?
No, manually deleting system folders or files can cause further problems. Always use official troubleshooting tools or methods.
3. How long does it take to fix this error using the recommended steps?
Most fixes can be completed within 30 minutes to an hour, depending on your familiarity with troubleshooting tools.
4. Can I prevent this error from happening again?
Regularly update your system, keep drivers current, run system scans periodically, and avoid installing untrusted software to reduce future errors.
5. Will updating my Windows version fix this error?
Updating Windows to the latest version can resolve bugs and compatibility issues that cause errors like 0x800705b4.
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