I wonder what was deleted. What's on the disk if you look from Linux? Look immediately after the install, and the next day and compare the results.
What is the exact error message?
i purchased seagate pipeline hdd 500gb a month ago..indtalled a windows 7 32 bit os. but next day when i booted up pc..there was no os error..
i again installed windows 7
again next day no os error...i again installed os
but the point is why....
why this problem is there...why harddisk formats itself?