Windows 7 Activation error

This is to resolve the error where Windows 7 will not activate automatically, or through the Licensing store

Source: http://www.sevenforums.com/windows-updates-activation/222421-windows-7-asking-activated-again-after-each-reboot.html

It looks like either you have a problem with the Licensing Store, or you have a counterfeit install. Lets see what happens if we fix the Licensing Store. Recreate the Licensing Store  1) Click Start button. 2) Type: CMD.exe into the 'Search programs and files' field  3) Right-Click on CMD.exe and select Run as Administrator 4) Type: net stop sppsvc (It may ask you if you are sure, select yes) Note: the Software Protection service may not be running, this is ok. 5) Type: cd %windir%\ServiceProfiles\NetworkService\AppData\Roaming\Microsoft\SoftwareProtectionPlatform 6) Type: rename tokens.dat tokens.bar 7) Type: cd %windir%\system32 8) Type: net start sppsvc 9) Type: slui.exe 10) After a couple of seconds Windows Activation dialog will appear. You may be asked to re-activate and/or re-enter your product key or Activation may occur automatically. Once complete, reboot TWICE - then go to www.microsoft.com/genuine/validate and attempt validation. reboot again, then post back with a new MGADiag report.