Hello folks, Zoltan again. This time with a printer story.
The short version: Have you installed the August 2021 update, KB5005030n update and started seeing the infamous "Do you trust this printer?" warning? Well, learn to live with it or disable the security measures implemented by the update.
The meat around the bone: as a consultant and system admin, I've deployed numerous systems where printers are deployed and administered centrally using Microsoft's Point and Print technology. Moved all local and shared printers from individual PCs to a central print server. Give a user a new laptop, join the domain, and (s)he'll get all the printers. Life's good. Or so it was until PrintNightmare has been identified and Microsoft released its August 2021 security update, KB5005030.
The update changes the the security model of the Point and Print driver installation, requiring administrative approval to install or update signed or unsigned printer drivers. Yes, signed drivers too. From the article:
Since then, August the 10th 2021 that is, users who installed this update and their printers are installed via Point and Print, have been plagued with this warning, unable to print their documents: