Hi XXXXXXXXX. Thank you for asking your question on JustAnswer.
First try a chkdisk by right clicking on your C: drive, and choosing properties, then tools, then check disk for errors and make sure the top box is checked:
You'll probably have to reboot to make it check the disk.
Let me know how you make out...
Computer Support Specialist
Certified IT Guru since C-64 and Amiga, expert at grey areas....