How to Fix Error Code 0x80070002: File Not Found in Windows 8.1

Here are several methods to fix error code 0x80070002: File not found in Windows 8.1:

1. Use the Windows Update Troubleshooter: Navigate to Control Panel > Troubleshooting > System and Security > Windows Update > Run the troubleshooter.
2. Remove the Software Distribution Folder: Head to C:\Windows\SoftwareDistribution and delete all files and folders. Restart your computer and attempt the update again.
3. Inspect your antivirus software: Antivirus programs can sometimes block Windows updates. Temporarily disable your antivirus and try updating again.
4. Verify your internet connection: Ensure your internet connection is stable and try the update once more.
5. Reset Windows Update components: Open Command Prompt as an administrator and enter the following commands one by one:
   

        net stop wuauserv
        net stop cryptSvc
        net stop bits
        net stop msiserver
        ren C:\Windows\SoftwareDistribution SoftwareDistribution.old
        ren C:\Windows\System32\catroot2 catroot2.old
        net start wuauserv
        net start cryptSvc
        net start bits
        net start msiserver

Restart your computer and attempt the update again.

6. Conduct a System Restore: If the above methods fail, try performing a system restore to a previous point when your computer was functioning properly.