Strategies for Resolving Error Code 0x80070490 in Windows 8.1

To rectify the error code 0x80070490 in Windows 8.1, follow these practical solutions:

1. Utilize the Windows Update Troubleshooter: Navigate to Control Panel > Troubleshooting > System and Security > Windows Update, and launch the troubleshooter.
2. Refresh Windows Update elements: Access Command Prompt with admin rights and sequentially input these commands:

 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
 

3. Inspect for damaged system files: Open Command Prompt as administrator and execute:

 sfc /scannow 

4. Temporarily deactivate antivirus software: Antivirus tools might obstruct the update process. Temporarily deactivate your antivirus and attempt the updates once more.
5. Execute a clean system boot: Performing a clean boot may help detect and solve conflicts causing the error. To execute a clean boot:

a. Press Windows key + R to initiate the Run dialog.
b. Enter msconfig and hit Enter.
c. In the System Configuration interface, select the Services tab.
d. Opt to Hide all Microsoft services.
e. Choose Disable all.
f. Navigate to the Startup tab.
g. Select Open Task Manager.
h. Deactivate all startup items.
i. Close Task Manager and confirm with OK in the System Configuration window.
j. Restart your PC and attempt the update installation again.


If these measures fail to resolve the issue, consider a system restore or a complete reinstallation of Windows.