Windows Vista installation error message

Hi, I’m having a problem installing Windows Vista to my PC.
I am currently using Windows XP and when I’ve tried updating to Vista the next thing happens:
“Install Windows
Windows was unable to create a required installation folder.
Error code: 0x80070008”

I don’t think the file is corrupted, but I’m not sure how to solve this so please, if you have any idea how to fix it post a comment.
Thanks.
