I Recently built my new PC with Gigabyte MB, i used my Windows 7 Ultimate x64 HP OEM and installed it , after 2 months microsoft said that the copy is pirated, while it is installed on my HP Laptop perfectly and i use it, i knew that is because it is OEM and not for the new MB. ok that's not the problem, the problem is after installing of two weeks , when i install any game or big software my PC USES ALL THE MEMORY. the free RAM is Zero. and the computer slows down completely.
The question is does windows OEM issue make this. or it is a RAM Problem.? And if it is a RAM Problem does that mean it is damaged or why this happen?
Note: I do not use any Overclocking.
RAM: 2X2 GB Corsair
CPU: Intel I5 2500K
HD: 500 GB WD 7200
Right now i'm planning to format my PC and use another X86 Copy of Windows.
If the RAM problem still persist. What does that mean.