Hello. I have a Lenovo G500s Touch laptop running windows 8 with 6gb of ram and 1tb hard drive. When I first got the computer it worked great but it started to slow down. I used to be able to run Guitar Hero 3 at full speed, but now its quite laggy, and doing anything on the computer lags. I think I have enough RAM. I ran antivirus, antimalware, and it didnt speed it up so I decided to do a windows 8 refresh, which restores to factory settings, and removes all programs, but keeps media files but my computer didnt speed back up. What should I do?