Commander Kinsey wrote:

Andy Burns wrote:

diskperf -Y or diskperf -N

This would turn off monitoring of C: as well?

Unfortunately, yes

There must be another way - if you're not seeing your card reader and I
am, there must be a setting we have different.

I was hoping you'd say you got no "eject" and then maybe something could
be done to persuade it that it was removable and should be hidden.