And semi rigs (which are the topic of this post) are…personal transport?

No by root I meant D:\
Some random peogram tried to access the root of one of the (non-C:\) drives and got blocked.
I on the other hand wondered why the program didnt work until I got the obligatory notification that something was blocked.

Once Microaoft/Windows blocked access to the Root path of one of my drives.
That was surprising.