i have a dell inspiron 15 laptop came with windows 8.1 later upgraded to 10 and has ran fine for the past 3 years but something happened not sure what but the pc comes on but won't load windows i've borrowed a friends windows 8 cd to see if i could get it to boot up with that, it said the drive where windows is installed is locked, so decided to look for answers from Dell they pointed to an app called "dell direct key creator" well followed directions for that but some reason i can't get all files needed to download i've also tried to reinstall windows 8 but when asked where to install it says i can't install on that drive and can't delete drives either i've also tried Auto Repair, System image Recovery, System restore all with no luck so not sure what to do i really don't have the money to have it repaired so was thinkin maybe someone on here might be able to help