Windows update errors are quite common, and most users come across them at least once during years of PC usage. In most cases, such problems go away by themselves, as the reason for them to arise are usually related to unstable internet connections or servers on Microsoft's side. This is why the error message commonly claims that the process will be repeated in the near future, which usually resolves the situation.
1. Run Windows Update Troubleshooter
The first thing you can do is to troubleshoot the issue with the built-in troubleshooter in Windows 11/10 and here is what you should do:
In Windows 10
1. Go to Settings > Update & Security > Troubleshoot > Additional Troubleshooters.
2. Then, locate Windows Update and click Run the troubleshooter.
1. Go to Settings > System > Troubleshoot > Other troubleshooters.
2. Then, click Run under the Windows Update section.
2. Refresh Windows Update Services
1. Click the search box, type cmd, and right-click Command Prompt to choose Run as administrator. 2. Copy and paste the following commands, pressing Enter each time:
1. Click the search box, type cmd, and right-click Command Prompt to choose Run as administrator. 2. Copy and paste the following commands, pressing Enter each time:
- net stop wuauserv
- net stop cryptSvc
- net stop bits
- net stop msiserver
3. Press Windows Key + E to open File Explorer
4. Go to the following locations and delete the contents of these folders:
- C:\\Windows\\System32\\catroot2
- C:\\Windows\\SoftwareDistributionReset Windows Update Components
5. Open Command Prompt again and paste these command lines:
- net start wuauserv
- net start cryptSvc
- net start bits
- net start msiserver
6. Restart your computer.
3. Repair Corrupt System Files
System File Checker (SFC) and DISM are built-in tools for you to fix any corrupt system files that can cause the issue – installer encountered an error 0x800f0905.
1. Type cmd in Windows search. Right-click on Command Prompt result and select Run as administrator
2. Paste the following command into the new window:
sfc /scannow
3. Press Enter and wait till the scan is finished
4. Once done, run this set of commands, pressing Enter after each:
DISM /Online /Cleanup-Image /ScanHealth
DISM /Online /Cleanup-Image /RestoreHealth
4. Start relevant services
For Windows updates to be successful, certain services need to be operational. In case they are not running, problems might occur. If, in your case, these services are already running, you should restart them instead.
1. Type in Services in Windows search and press Enter
2. Locate Background Intelligent Transfer Service (BITS)
3. If it is already running, right-click and select Restart
4. If the service is not running, double-click it, select Automatic under the Startup type from the drop-down menu
5. Click Start, Apply, and OK
Do the same with Windows Update Service.
5. Manually Install the Updates
If you cannot update Windows 11/10 with the error code 0x800f0905, you can manually install the updates.
1. Search for Windows 11/10 update history and click the link from Microsoft. Then, note down the KB number for the latest version.
2. Go to Microsoft Update Catalog, type the KB number to the search bar, and press Enter.
3. Choose the proper update based on the system architecture and click the Download button.
4. Double-click on the downloaded file and start the installation by following the on-screen instructions.
The best fix is to use the Troubleshooter tool available in Windows along with the DISM and SFC tools. They will replace everything that is broken. You can also follow the manual method, but that will involve deleting the file from the System Folder, so make sure you understand it clearly before doing so.
I hope the post is easy to follow and you can resolve Windows Update Error 0x800f0905.
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