Someone used my laptop and installed a number of software titles, and while I've tried them all out, I cannot decide which I absolutely do not need (as a few of these seem to do the same thing). Here's a list: CCleaner Premium Booster Glary Utilities AusLogics Disk Defrag Advanced SystemCare WinPatrol AusLogics Disk Defrag seems pretty useful, so I'm probably going to keep that (unless it's no good.. I'm not sure how good any of these are really..). So which of the others should I get rid of? *Also, I had a question about Premium Booster. I ran the quickscan, and it showed that there were 217 problems... should I let it repair these problems? Because quite frankly, I've no idea how to repair it myself..