Bulk user deletion

Bulk user deletion

Hello
I accidently imported all users from AD (like 111 000 users)  - in fact i do not know how its happened (i added  some ad group to be imported but they should contain smaller number of users)
In logs i can see a lot "Inside createUserGroup mentod....|" entries so i think that some group was nested but i cannot find which one.
Nerveless - how deleted those users from PMP -  even when I change users view to 100 it will take over 1100 deletion  action which is obviously not very smart solution...

If we cannot delete all users in bulk from GUI, how to restore previous database ?

I have PMP backup i tried to restore but it throws error "Problem while restoring db"
I have also VM backup - can I restore just PMP database files ? Or whole PMP folder ?
Last resort is a full VM Restore - but that is something that i will try in last place..

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