WD10EARS unstable system

Hi I have the following hardware:

I3-540 3.06GHz Intel Core Clarkdale
Gigabyte GA-H55M-S2V (rev. 1.4)
Patriot Series G ‘Sector 5’ Edition 4GB (2 x 2GB) DDR3 1333 PGV34G1333ELK
WD Caviar Green 1TB WD10EARS
OCZ StealthXStream 500W 36A

I have problems when copying from USB. The copy process completed successfully but the file is damaged.
In addition the system is unstable: the Windows 7 Aero connects and disconnects and some applications stop working quite often.

It is possible that the hard drive cause this problem.
Thanks in advance.


Run the WD Data Lifeguard Diagnostic, this tool will allow you to test your drive for any errors.