Hello Centesco, I’m sorry to hear you are having this kind of issues with your system.
We haven’t received any reports from users experiencing this behavior, so it will be important to get more information.
So please let me know if you are getting an error when trying to access Windows, such as "please insert boot device" o "reboot and select boot device" etc?
Are you using an original license of Windows?
Are you trying to install the OS on an mSATA SSD or a regular SATA drive?
Just in case, I found some information about a similar problem on the following thread http://social.technet.microsoft.com/Forums/windows/en-US/876d552c-428b-402b-be19-adeab4fd618e/windows-7-does-not-boot-from-first-restart-during-clean-install?forum=w7itproinstall
there was no error, just restart right after "post screen"... It's original Win7 DVD without SP1 and regular SATA drive (can't remember model number, but its manufacturer is WesternDigital).
But yesterday i had success with Win 8.1 installation, it's working now. Thank for your link, i'll give it a try today and write back.