Hello. Recently I decided to host my own online server on Minecraft. I decided to use most of my RAM with it (6 GB). I guess I overloaded my computer and something got pretty screwed up. Windows hangs at the start up screen now. It's been like this for the past 3 days, and I have gone through countless hours trying to fix it. I have tried to run in safe mode, but it will freeze while loading files, and crash. I got the repair disc, and I tried it on my computer. I think it said that there was a disk error. It took about 4 hours for it to fix it, but that didn't work. I have it running again at the moment, and before it started checking for repairs, it said that a file in system32 was damaged and I have to run chkdsk. I know what chkdsk is, but I don't know how to run it unless I'm logged in. I would appreciate to know how to run it on boot. Thank you very much to whoever replies. This made me really upset since this is a great computer, and not even 6 months old.