https://www.sevenforums.com/windows-updates-activation/119088-update-not-applicable-your-computer.html

Belarc Advisor - Free Personal PC Audit 
Secunia Personal Security Inspector Download

Download & run Readiness Tool Description of the System Update Readiness Tool for Windows Vista, for Windows Server 2008, for Windows 7, and for Windows Server 2008 R2,this will create CheckSur.log file in C:\Windows\Logs\CBSfolder,attache this file to post

Windows 7: Update is not applicable to your computer