Windows not updating
Use the Reset Windows Update Components Tool and see if it helps you. See this post if you receive Windows 10 Update Error Code 0x8024a105 while downloading updates.
Microsoft routinely releases security updates on the second Tuesday of each month (Patch Tuesday), but can provide them whenever a new update is urgently required to prevent a newly discovered or prevalent exploit targeting Windows users.The Windows Update Control Panel also has the function of downloading Windows Ultimate Extras, optional software for Windows Vista Ultimate Edition. But I also use it under Parallels in my Windows 10 system running on the Mac. When I click on Options - Updates, and click the update button, it briefly flutters, disappears, and nothing happens. If Windows Update fail to install, is not working, updates will not download or keep failing, then these suggestions will help you troubleshoot & fix Windows Updates. Also, go here to see the Complete Master List of Windows Update Error Codes. Use the Windows Update Troubleshooter from Microsoft. The warnings will probably appear as -: WARNING: Failed to find updates with error code XXXXXXXX. Go through the entire post and then see which of these may apply to your system. If you are unable to install Windows Updates, first clear up your Temporary Files and Internet Cache, reboot and try again. Best and easy to use the built-in Disk Cleanup utility or CCleaner. Disable your Firewall and Anti-virus software and try again. Search on Microsoft, for the patch using the Update KB number, and download its stand-alone installer.