There is a major issue on windows 7 that has to do with updates. On a fresh install of windows 7 and after applying Service Pack 1, windows cannot receive any updates. The main symptom is that stuck during checking.
Please not that this is a different issue than the one we posted last week and came up after the June 2016 updates.

Follow these steps to resolve this issue.

– Stop the windows update service.
From a command prompt run net stop wuauserv

– Download and install  April 2015 servicing stack update for Windows 7 and Windows Server 2008 R2 (KB3020369)

 
 – Download and install Convenience rollup update for Windows 7 SP1 and Windows Server 2008 R2 SP1 (KB3125574) .
There is no direct download link for this. Update can be downloaded from Microsoft Update Catalog
 You have to use Internet Exporer as an ActiveX control must be installed.