Hi, i have windows 10 but i format my computer. I have windows 8 key, but now i have to install W8, then upgrade to 8.1 and the update to W10...take 2 days to do that... is there a way to jump to w10?
You should be able to install Windows 10 with your Windows 8 key.
I am assuming that you have already done the upgrade from Windows 8 to 8.1 to 10 before you re-formatted your system.
Yes that's true as well the key is already locked into his bios chip if he had win 10 installed before. I have did a fresh install or two and never had to use my key.