If you receive Windows Update error 80072efe or 80072f76 while checking for updates, it might be caused by a connection interruption between your computer and the Windows Update servers. Close Windows Update, wait 10 to 15 minutes, and then run Windows Update again. You can also wait for Windows Update to run at its next scheduled time.
If you still receive one of these errors, you can run an automatic troubleshooter that will automatically find and fix some common problems with Windows Update.
Disclaimer : The above link is linked to a third party website and we are not responsible for any inconvenience caused.