Hi everyone. I have a problem installing Windows 8.1 (any build, including RTM). The system enter BSOD when the first loading spinning points appears. Even the upgrade from 8.0 isn't working, after restarting says there's a problem and the system will be restored. I've tried installing from DVD and USB Disk, no succes, doesn't pass the first loading installer part. Specs: Asus Pro55SR -AP051 - CPU - Intel Core2Duo T5750 - RAM - 4GB DDR2 667Mhz - GPU - HD 3470 512MB I've read some weeks ago on Microsoft forum support, that a Lenovo owner has the same issue, but nobody gived him a solution.