How to solve the error code 0x80070003: Invalid path in Windows 8

There are several ways to solve the error code 0x80070003 in Windows 8:

1. Run the Windows Update Troubleshooter: Go to Control Panel > Troubleshooting > System and Security > Fix problems with Windows Update. Follow the on-screen instructions to complete the troubleshooting process.
2. Rename the Software Distribution Folder: Go to C:\Windows\SoftwareDistribution and rename the folder to SoftwareDistribution.old. Then, restart your computer and try to update again.
3. Check your antivirus software: Sometimes, antivirus software can interfere with Windows updates. Temporarily disable your antivirus software and try to update again.
4. Check your internet connection: Make sure your internet connection is stable and strong enough to download updates.
5. Use the System File Checker: Open Command Prompt as an administrator and type "sfc /scannow" and press Enter. This will scan your system files and repair any corrupted files.
6. Reset Windows Update Components: Open Command Prompt as an administrator and type 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
   

Then, restart your computer and try to update again.