I have a customer who's windows 7 laptop was displaying issues when we tried to install programs. It was determined that the copy of windows7 was either not genuine or someone hacked or made it look registered for some reason. She purchased the laptop at Best Buy last year but does not have the receipt. She went ahead and purchased another copy of Windowss7 from the microsoft website and has the new product key and we can download the iso or exe.
Is there an easy way to update her OS and make it 'genuine' without having to reinstall the OS? We dont want to have to rebuild this laptop. Suggestions please.. we want this to be EASY and QUICK.