Windows 7 has hidden folders and files. Did you unhide those?
How did you scan this drive for disk usage? Windows Explorer isn't that accurate when calculating file/folder sizes, but even so it should be able to pinpoint areas of large files/folders.
Mark
hey
i have been using DELL INSPIRON 1564 series. I have 2 partitions....
Wiondows 7 has been installed on drive c: which has a capacity of 97 gb, out of which only 3 gb is left somehow now...i have scanned the drive and i did not find anything installed of that size. So i am losing on around 60-70 gb (after taking into account windows 7 and other bare minimun files).

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