Sony Vaio VPCF13LOE Win7 pro x64 freezes randomly

After 2 weeks, on a daily basis, trying to solve the problem that i will describe here, i'm asking for your help to find a solution.




I have a Sony Vaio VPCF13LOE, with Windows 7 x64 professional instaled. Windows "freezes" randomly. Sometimes i work with my laptop all day long and nothing happens, sometimes it freezes each fifteen minutes or so.



I reinstalled win7 , recently, so the computer doesn't have much software to cause conflicts, but the drivers.






Mesures...

Sony Vaio VPCF13LOE Win7 pro x64 freezes randomly

Sony Vaio VPCF13LOE Win7 pro x64 freezes randomly