Fix Some Update Files aren’t signed correctly: You may face this error while trying to update your Windows 10 to latest build. The error code associated with this error is (0x800b0109) which indicates that the Update you are trying to download or install is either corrupted or damaged. The update is not corrupted or damaged from Microsoft servers but on your PC.
The error message says “Some update files aren’t signed correctly. Error code: (0x800b0109)” which means you won’t be able to update your Windows because of this error. So without wasting any time let’s see how to actually Fix Some Update Files aren’t signed correctly issue while updating Windows with the help of below-listed troubleshooting guide.
Fix Some Update Files aren’t signed correctly
Make sure to create a restore point just in case something goes wrong.
Method 1: Run Windows Update Troubleshooter
1.Type “troubleshooting” in Windows Search bar and click on Troubleshooting.
2.Next, from the left window pane select View all.
3.Then from the Troubleshoot computer problems list select Windows Update.
4.Follow on-screen instructions and let the Windows Update Troubleshoot run.
5.Restart your PC and see if you are able to Fix Some Update Files aren’t signed correctly while trying to update Windows 10.
Method 2: Run SFC
1.Press Windows Key + X then click on Command Prompt(Admin).
2.Now type the following in the cmd and hit enter:
Sfc /scannow sfc /scannow /offbootdir=c:\ /offwindir=c:\windows (If above fails then try this one)
3.Wait for the above process to finish and once done restart your PC.
Method 3: Run DISM (Deployment Image Servicing and Management)
1.Press Windows Key + X and select Command Prompt(Admin).
2.Type the following command in cmd and hit enter after each one:
a) Dism /Online /Cleanup-Image /CheckHealth b) Dism /Online /Cleanup-Image /ScanHealth c) Dism /Online /Cleanup-Image /RestoreHealth
3.Let the DISM command run and wait for it to finish.
4. If the above command doesn’t work then try on the below:
Dism /Image:C:\offline /Cleanup-Image /RestoreHealth /Source:c:\test\mount\windows Dism /Online /Cleanup-Image /RestoreHealth /Source:c:\test\mount\windows /LimitAccess
Note: Replace the C:\RepairSource\Windows with the location of your repair source (Windows Installation or Recovery Disc).
5.Reboot your PC to save changes and see if you’re able to Fix Some Update Files aren’t signed correctly while trying to update Windows 10, if not then continue to the next method.
Method 4: Registry Fix
Backup Registry before moving forward, just in case something goes wrong you could easily restore the registry.
1.Press Windows Key + R then type regedit and hit Enter to open Registry Editor.
2.Navigate to the following registry key:
3.Right-click on WindowsUpdate key and select Delete.
4.Close Registry Editor and again press Windows Key + R then type services.msc and hit Enter.
5.Find Windows Update and Background Intelligent Transfer Service in the list. Then right-click on each of them and select Restart.
6.This would restart Windows Update and Background Intelligent Transfer Service.
7.Again try to update your Windows, if it still fails, then reboot your PC and again try to update Windows.
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That’s it you have successfully Fix Some Update Files aren’t signed correctly while updating Windows 10 to latest build but if you still have any questions regarding this post feel free to ask them in the comment’s section.