How to Fix Error Code 0x80070490: Essential Steps for Windows 8

Diverse tactics can address the error code 0x80070490 in Windows 8:

1. Activate the Windows Update Diagnostic utility: Navigate to Control Panel > Troubleshooting > System and Security > Windows Update and launch the diagnostic utility.
2. Examine integrity of system files: Start Command Prompt with admin rights and type 'sfc /scannow,' then hit Enter. This command will assess and correct any impaired system files.
3. Update Windows Update mechanisms: Apply the subsequent commands in succession in Command Prompt with administrative access:

 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. Initiate a pristine startup: Press the Windows key + R, input 'msconfig,' and press Enter. On the Services tab, mark 'Hide all Microsoft services' and select 'Disable all.' Move to the Startup tab, pick 'Open Task Manager,' deactivate all startup entities, and reboot your machine.
5. Proceed with a system recovery: Proceed to Control Panel > System and Security > System > System Protection > System Restore. Select a recovery point before the error appeared and adhere to the directives to restore your system.

Should these strategies be ineffective, a reinstallation of Windows 8 may be required.