Thank you all for the help, I have tried all the metodes, but none of them work. One of the solutions i found wanted me to transform MBR to GPT and required a complete formated hard drive, even if I did not have the os on that 4TB HDD I ended up an destroyed operating system and needed to reinstall windows and delete all files. If someone could find a way to fix the issue where I cannot format to GPT without destroying my entire build, that would be nice. Or if anny of you have another way of unlocking the extra 2TB