The HD in my seldom used Dell E6400 laptop finally failed. I installed a new HD but MS won't let me activate the OS. The E6400 still has the original sticker attached but the code for 64 bit Win7-Pro on the sticker doesn't want to work for anything except as a 'catch 22'. The OS had been upgraded to Win 10-Pro at some point. MS' instructions on how to get reactivated aren't of much use. I'm rather ancient at this point and need some really simple guidance on how to proceed. Thanks, in advance, for advice, guidance, etc.
My Computer
- Computer type
- PC/Desktop
- Computer Manufacturer/Model Number
- Dell Optiplex 755/Optiplex 780/Latitude E6400/Precision T3500
- OS
- Win7 Pro x86/Win7 Pro x64/Win 10 Pro x64
- CPU
- Intel Core 2 Duo E7200 2.53 gHz/Core 2 Duo E8400 3.0 gHz/
- Internet Speed
- FiOS 100 mB
- Antivirus
- Bitdefender Total Security
- Browser
- SeaMonkey/Edge