I figured this is the best place to get answers to my questions. About 2 weeks ago my computer started acting weirdly, it would shut down the page Im on and open up 2-5 more. So, I brought my puter to "my computer guy" and just by checking fast he told me it was the keyboard that was making the computer acting this way. He however said that the Hard drive was on the brinks of needing to be replace. So, I said to go ahead and the next day I have my puter back. Start it up, it freezes, reboot, it freezes, reboot and everything just stopped. Call the puter guy and he said it might've been a defective hard drive? now it is at the puter guy for almost 5 days I reached him and he said he put a new hard drive in it...but when I open my computer, it works great...but all the little reminder files on home page, and all the saved pics are not mine....what does all of this mean...he is putting used parts and passing them off as new part? would it explain I've just told you?