Jonathan thank you for your reply.
I forgot to mention that after several attempts I finally succeeded and made it install on my main drive. By removing Android and it’s allocated memory I want to get some more space I need for all the features for the VS I need (some 10 more GB). I thought that deleting files from the partition assigned to the Android and then reassign it to windows would be easier. I really don’t want to reinstall windows or do anything like that. So far everything i tried to trick the tablet failed miserable and the last thing I want is to brick the whole device. So I cannot just format the partition and assign it to the windows, right? Thats very unfortunate for me :/ Anyways thank you! 🙂