I have been trying to run a disk defrgmentation and I am being ask to rub a check disk I do not know how to. I tryed going to the Run comand.com and wrote "chchdsk/f" and is telling me that it is a "read only" function. In the information of my system it says that I have Service Pack 3. Please help. Everything else is working fine.1 person got this answerI do too