I'm really annoyed with the stupid windows keys that get issued with computers (Tablets and laptops). I have tried 6 different Windows 10 iso's today and not a single one would recognize my very valid Windows 8 key. And forcing people to reinstall 8, update, reboot, update, reboot, update, reboot, upgrade to 8.1, update again, and again, and again, and finally upgrade to 10 is so ridiculous!!! And at the end of it all, I still don't think it's going to work. I wouldn't even bother, but my Windows 10 Insider preview is corrupt and I can't find any insider preview iso's to download (not now anyway). And I have work to do. Microsoft, cut it out already. LET ME USE MY KEY!!!!!!!!!!!!!!!!!