How to Fix Error Code 0x80070490: Windows Cannot Install Required Files in Windows 8

There are various methods to resolve error code 0x80070490 in Windows 8:

1. Run the Windows Update Troubleshooter: Navigate to Control Panel > Troubleshooting > System and Security > Windows Update > Run the troubleshooter.
2. Check for corrupted system files: Open Command Prompt as an administrator, type 'sfc /scannow', and press Enter. This command will scan and repair any corrupted system files.
3. 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

4. Perform a clean boot: Press Windows key + R, type 'msconfig' and press Enter. Go to the Services tab, check 'Hide all Microsoft services', then click 'Disable all'. Next, go to the Startup tab and click 'Open Task Manager'. Disable all startup items and restart your computer.
5. Perform a system restore: Navigate to Control Panel > System and Security > System > System Protection > System Restore. Select a restore point from before the error occurred and follow the prompts to restore your system.

If none of these methods resolve the issue, a reinstallation of Windows 8 may be necessary.