Hello,
I bought my laptop Lenovo Thinkpad E531 with preinstalled Windows 8.....hen I upgraded it to windows 8.1 by Windows App Store, Now accidentally I updated the product key (invalid one) and windows got deactivated. Now I want to activate the Windows 8.1, I have genuine Windows 8 OEM key (found using get_win8key program). I want to Go by installing Windows 8, then upgrading it windows 8.1 then installing all my software again. But I dont know the procedure how to do that. and also i want to download windows 8.1 iso disk.
plz suggest
Thank You