O.k. Try the defragmenter to get there go to my Control Panel then click Performance and Maintenance , next go to , click rearrange items on hard disk, then click on defragment. It should take from 30 min +. If that does not work do you have a anti virus , firewall , anti spyware. you should run it 3 times a week. If not get it because you will have to format you’re hard drive if you don’t . It is probably the hard drive if you can't contact the company. Take the computer and get it serviced the hard drive is probably defective a new 80GB hard drive will cost around $80 +. What is the company that built you're computer? My computer is also a custom computer.