Hi. I bought a online key for Windows 7 Ultimate x64 Spanish. They provided me with a download from the microsoft ftp server. I checked it had the correct md5 of a unmodified ISO. It worked fine for several months, but some weeks ago MS banned the key. I'm trying to contac the seller, but the trial period was expirating, so I want to activate windows before it block himself. ippytattoo kindly provided me a modified Bios mod for my motherboard, but the certificate doesn't work. Everytime I try to upload it, the dialog box says it was succesful, but Slictools can't found it. Right now Windows 7 can pass through microsoft.com/genuine, but do not activate itself. Some ideas? I did no use any sort of software activator or such. Only Slic 2.1 and certificates + OEM key. Thank you for you attention.