HDD wrong size displayed

have you cleaned your drive? and /or compressed disk?
-----Original Message-----
My HDD is and 80gb Seagate Barricuda and is fully working
under winXP pro with the exception that I have been
deleting a large number of large files and windows has
not
correctly been updating the remaining disk space. So
everytime I go to install a new program it tells me I
have
no disk space when I know I have in excess of 8gb
remaining. There must be a fix, I do not have sp1 either.
Please email me

Thanks
.