Situation: scanning using an administrators account on a Windows Terminal Services server.

Expected: all users get scanned.

Experienced: while the on-demand scan is running, other users cannot login / get assigned a temporary new user profile.

Background: to be able to scan the registry of inactive users, their profiles need to be loaded; while these are loaded, access by their user is limited.

Intended workaround: improve detection of multi-user environments by taking special care of Terminal Services (user32.dll:GetSystemMetrics(SM_REMOTESESSION) fails here, we need to add WTS API support).