Why is SYSTEM_DRV Partition suddenly being listed in File Explorer Windows 10 Lenovo?

I never saw this partition in my file explorer and I guess only in Disk Partition. But, suddenly I see it now in explorer. What happened? Someone hacked my PC and doing crazy things?? :O

And is it safe to be listed openly in file explorer?

However, I am not able to open it. It's saying access denied though I am the administrator.

Solution 1:

You are seeing it because a driveletter was assigned to it.

From DiskManagement, rightclick the partition, and choose Change drive letter and path, and remove the drive letter.

This drive is only containing the bootloader, and does not need to have a driveletter assigned to it.