TCM not protecting my windows 7 system reserved partition


I have a windows 7 computer and the protection status of my system reserved partition is not protected.
Is there an option where I can choose which partition to protect?
I have tried adding a letter to the partition but still doesn’t work. I am wondering how is it going to fix windows boot-up problem if it doesn’t cover the boot partition.

THanks in advance

It would be better let the things like they are.
The partition is too small with few free space. It’s managed by Windows.
If you have an external USB drive you can copy the entire partition (Easeus can be a tool for you).