s hard to say if this could be your problem or not, but if it keeps happening, it could be..processor,
graphics card, or hard drive. The worse case scenario would be your mother board going bad. As a precaution, I would backup any pics or documents that you want saved..just in case :) When I had this recently happen, my processor went out..it was shutting down, slow, clicking unexpectedly, and programs were crashing or slow.