so I recently installed Win 7 OEM from DVD as the only running OS on my notebook after I messed around with shrinking the windows partiton on Win 8.
But when I try to install Linux now as 2nd OS, it shows me, that all of my HDD space is unallocated, although WIn7 is installed. Gparted live says the same, so almost certainly my partition table is damaged. Gparted tells me that the partition table "has GPT signatures but is corrupted" or something like this. If I click on "information" I dont get any warnings/errors like mentioned here: http://gparted.org/h2-fix-msdos-pt.php
So what would be the best way to get that right again? Thanks