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Error Code 80072f78 error code is common for all the Windows Operating systems when you try to install the windows updates. This windows update error code 80072f78 appears when Windows 10 or Windows 7 update system is broken or there is network related issues and concerns.
Usual causes for this 0x80072f78 error are communication failure over the Internet with Microsoft update servers.
Firstly, I will suggest you to do Windows Troubleshoot for Windows Update Error Code 80072f78.
Disable the proxy internet connection and try again to install the windows update.
Simultaneously, second case is with your Antivirus. There are proxy settings enabled under your settings of any security programs that you are using.
There are failed windows update services that could also cause you this Windows Update Error 80072f78 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.
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.
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.
This process may result positive note saying all the issues are resolved and the flip side the negative result could be that your windows is corrupted.
In this case, you should really work hard to reinstall windows operating system.
Backing up data is the foremost important thing in order to make sure you won’t lose your personal files.
Finally, If you are still not able to resolve this error code 80072f78, 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