A few years ago I backed up my laptop hdd with dd so that I could install linux but then revert back to windows if I wanted to. I didn't know much about UEFI and none about GPT disks, so I didn't do anything other than:
dd if=/dev/sda of=somefile.bin bs=64K
Then I restored it a few days ago and TADA, the FS in the partitions are unidentifiable. In windows'
diskpart it shows the correct number of partitions with the correct sizes but the FS show as RAW for all of them.
gparted it shows all as Unidentified or something like that.
Is there a way I could perhaps fix this and make my windows partitions bootable again? I mean, I wanted to upgrade it to windows 10. I don't mind losing the data I had on it, but I don't have a recovery disk and the laptop came with Windows 8 so no product key or COA on it. :(
Any help is appreciated.