How to resolve error code 0x80070490: Windows cannot install required files in Windows 8.1

Here are several methods to resolve the error code 0x80070490 in Windows 8.1:

1. Use the Windows Update Troubleshooter: Navigate to Control Panel > Troubleshooting > System and Security > Windows Update > Run the troubleshooter.
2. Reset Windows Update components: Open Command Prompt as an administrator and enter these commands one at a time:

        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. Check for corrupted system files: Open Command Prompt as an administrator and enter this command:

        sfc /scannow  

4. Disable antivirus software: Occasionally, antivirus software may interfere with the installation process. Temporarily disable your antivirus software and attempt to install the updates again..
5. Perform a clean boot: A clean boot can help identify and resolve software conflicts causing the error. To perform a clean boot, follow these steps::

a. Press Windows key + R to open the Run dialog box.
b. Type msconfig and press Enter.
c. In the System Configuration window, click on the Services tab.
d. Check the box next to Hide all Microsoft services.
e. Click on Disable all.
f. Click on the Startup tab.
g. Click on Open Task Manager.
h. Disable all the startup items.
i. Close Task Manager and click on OK in the System Configuration window.
j. Restart your computer and try to install the updates again.


If none of these solutions work, you might need to perform a system restore or reinstall Windows.