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Error Code 80071a90 is common for all the Windows Operating systems when you try to install the windows updates. Windows Update Error Code 80071a90 usually appears when Windows 10 or Windows 7 update system is broken or there is network related issues and concerns.
Usual causes for this Error Code 80071a90 are communication failure over the internet with Microsoft update servers.
Firstly, I will suggest you to do Windows Troubleshoot for this Windows Update Error 80071a90.
Disable the proxy internet connection and try again to install the windows update.
Second case would be with your Antivirus. There are proxy settings enabled under your settings of any security programs that you may be using. If you cannot find the procedure to stop it, you can ask our techs on chat support to guide you.
There are failed windows update services that could also cause you this Windows Update Error 80071a90 while updating Windows.
Repairing Windows update services is not possible like you repair any windows apps from the add/remove programs. There is a procedure that you need to follow through command lines.
Above all, this requires the user to have administrator rights on his computer. As per the Microsoft set of rules defined on various Knowledge base articles, the steps are simplified as mentioned here to reset your windows update services.
NOTE: following these steps carefully will not make any changes to your personal data or programs. It will only reset the Windows update services.
SFC SCAN is the command line that we use to do this process. I will explain you the steps in detail on how to perform this scan.
Similarly, this process may result positive note saying all the issues are resolved and also the negative result stating that your windows is corrupted.
In this case, you should really work hard to reinstall windows operating system.
Simultaneously, backing up data is the foremost important thing in order to make sure you won’t lose your personal files.
And I am sure any disaster that would have happened for few are due to their system hardware dependencies. An old computer which got upgraded from XP to 10 or 7 to 10 is certainly not compatible for this programs. It is just a fluke to get such issues as 1 in 100.
Finally, If you are still not able to resolve this Windows Update Error Code 80071a90 , we suggest you to chat with our assured experts. I am sure they will give you the best solutions to resolve completely. You can also visit our website for more information.
More details for this method at https://supportmicrosoft.com/en-us/help/929135/how-to-perform-a-clean-boot-in-windows