Can't unmark partition on create system image.

Im having a hard time trying to make a backup on my pc. When I try to create a system image, I can not unselect a partition that is on the same disk as the os partition . I used to be able to create system images with this current installation without this other partition being backup. But out of nowhere, I can not unselect it. The window says this partition is a system partition , but im not sure how to unmake the drive as a system partition . I have tried searching the web for the last day, and can not find anything related. My goal is to move my current os to a diffrent drive, hence why im trying to make a system image. All drives are bitlocker secured, so I can not make the partition invisible with minitool partition wizard. If there is a why to make the partition invisible to windows, it would solve my issue. I am trying to limit the write cycles to this drive, as it is a M.2 Ssd. So copying everything on is a last resort. Message me if you need more info about my problem.

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Might have found the issuse. I have a program installed to the disk. I'll report back soon.

please post a >>complete<< disk management screenshot

Ok, looks like that was the issues, there was a program installed on this disk. But I don't want to mark this as solved until windows backup finishes the backup completely.