I have the following partitions:
When trying to install Ubuntu, it failed to read any of them and said "unusable space".
The same from Kubuntu, Arch Linux and OpenSUSE.
I tried to reinstall Windows and restructure my partitions, but I could not delete all of them and I am unsure if I should delete the 39MB "OEM" one and the 100MB "System reserved". I am a novice, so please keep any advice at a minimum knowledge level.
From what others tell me, the primary partition should be C:\ and that might be part of the fault
Best Answer
(People please read the image more carefully.)
The OP's real problem is that the disk is Dynamic instead of basic. This is a M$ proprietary format that builds on GPT. For OSes that do not support it the whole disk is seen filled with a big data partition and a small one for metadata.
The OP should first convert the disk to a Basic one in GPT and then you should be able to create a partition in the unused space with your Linux installer.
If your BIOS does not support GPT, you should convert the disk to use MBR partition table and convert partition D: to an logic partition in an extended partition. Then the extended partition can be expanded to include the unused space and another logic partition for Linux.