1. If you are unable to install Windows Updates, first clear up your Temporary Files and Internet Cache, reboot and try again. See if this helps resolve the issue. Best and easy to use the built-in Disk Cleanup utility or CCleaner.
2. Disable your Firewall and Anti-virus software and try again.
3. As mentioned earlier, many a times, an update may fail to install in the first instance, but for some inexplicable reason, succeeds in the 2nd or 3rd try. So try a couple of times.
4. Search on Microsoft, for the patch using the Update KB number, and download its stand-alone installer. Now apply the patch manually. Search for just the number; don’t include KB ! Also, go here to see the Complete Master List of Windows Update Error Codes.
5. Use the Windows Update Troubleshooter from Microsoft. It resets Windows Updates settings to defaults.
6. Use our Fix WU tool and see if it helps. It re-registers all the dll, ocx and ax files required for the proper functioning of Windows Updates.
7. Run System Update Readiness Tool. It can help fix problems that might prevent Windows Updates and Service Packs from installing.
8. Right-click Computer > Manage > Services > Stop the “Cryptographic Service” and rename the “Catroot2″ folder situated in C:\Windows\System32\Catroot to something else like say Catroot2X.
If you still have trouble,
There could be various reasons for which system is not able to repair.
We need to check the policies and registry settings and exceptions and firewall settings and other kind of settings.
For a quick solution seek an expert's help from the following chat link.
If the issue is still not fixed, it can be a very critical problem with your computer affecting your personal data and the Windows Operating System. You will have to chat with our Experts or you can check with your local technician to get the problems fixed with very high priority.