Information

"Sorry, 7tsp only works with Windows Se7en!"

this problem is if you are using the fake version of Windows and not the original license

this problem is if you are upgrading your os from Windows 7 to higher W8 / W10

if you are upgrading w10 to the higher build or Insider preview

before Upgrade run sfc /scannow and remove all of your 7tsp files from c/Program files directory
because new windows using the old rest data from Old Windows or use Clean Install