If you're worried about your hardware you can run diagnostics on it to figure out if there are problems. Ultimate Boot CD - Overview
Download the CD as an ISO not a zip.
Burn it to disk using Windows or IMGBurn
Insert in Computer & Boot from it
You can now use the memory, hard drive and other diagnostic tools to figure out whether you have a hardware issue. Keep in mind that many of the tools take a considerable amount of time to complete.