I added MDEV-22272 as prerequisite. So far, mariadb services run under NETWORK SERVICE account. For this predefined account, that runs a lot of Windows stuff besides MariaDB, I'd hesitate to change privileges. But for virtual (per-service) accounts, this should be fine.

Thank you wlad, I was fairly sure I was out of my depth to attempt this myself.

Fixed in the latest 10.6

the new parameter name is --large-pages
The MSI does not know about it yet, also, there is no autocleanup, i.e after you throw your database away, and remove the NT service, there is still a stale entry in secpol.msc, under Local Security Policy /User Rights Assignment /Lock Pages in memory. I do not know why Windows would not autoremove the privileges for the service user, associated with Windows service that was removed, but maybe we can add some --uninstall to the mysql_install_db.exe later to do better cleanup.

Thank you wlad