How to Fix the Error 0x80240031 When Updating Windows 8

Follow these practical steps to address the Windows 8 update error 0x80240031:

1. Reboot your system: Often, a simple reboot can rectify update errors.
2. Utilise the Windows Update troubleshooter: Navigate to Settings > Update & Security > Troubleshoot > Windows Update to deploy this tool and address common update issues.
3. Verify internet connectivity: Ensure your system has a robust internet connection. If on Wi-Fi, consider a direct Ethernet connection to your modem for stability.
4. Temporarily disable antivirus: Antivirus programs can sometimes obstruct the update process. Disable yours briefly to check if it impacts the update.
5. Purge the Windows Update cache: Corrupted cache files can disrupt updates. To cleanse, execute these commands in an elevated Command Prompt:

    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

6. Reset Windows Update components: If problems persist, resetting the update components might help. Use these commands in an administrator Command Prompt:

    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
    wuauclt.exe /updatenow

Attempt the update once more after performing these actions to potentially clear the error.