Had my Dell PC crash after a year running 10. I got new hard drive and USB with OS/drivers to restore Windows 7.Problem is that I am unable to do some stuff, like add folders to start menu and move individual programs into them. 10 worked great while I had it, maybe it was the Insider Previews that resulted in the crash. I find 7 counter-intuitive after 3 years, but don't want to chance another crash even if the free upgrade is still available. Any assistance would be appreciated.