Hi egyprincessync,
From the sound of the description you've given...it's a hard drive problem.
If you can get into Windows
Goto My Computer -> Right click on Local Disk (C

-> Properties -> Tools -> Check Now (under Error-Checking) -> Check both tick boxes and press Start
However, i think it's an actualy physical problem with the drive itself and may need to be replaced. If it's only half a year old, it will be under warranty