Hi everyone! I just tried installing the Win7 Ultimate 64-bit edition on my ASUS U81A notebook. The setup went fine, and after entering the serial number and restarting the computer, upon entering the login phase, there was an error, I can't recall exactly what it was, but it was something in the line of "logon faliure for some reason", I couldn't even read it properly because the laptop restarted promptly. After that, I got the boot faliure and unfortunately had to reinstall Vista from the recovery partition. Any ideas? P.S. First I tried formatting the disk and then installing Win7, encountered the problem, installed Vista from the recovery partition, then tried installing Win7 from Vista, but again the same problem.