I got it figured out now.
After the deeper search option in testdisk i needed to mark the linux partitions as logical (they were marked as deleted otherwise) and it saved the partition table just fine.
So i now have my files back - Big thanks to you - Leppie and to you too Secret.
Now i just need to install grub. Can i rely on you, if that goes wrong or throws errors?
I probably should be fine if i follow this:
https://help.ubuntu.com/community/Re...tallingWindows
?
Bookmarks