Account lockouts and password expiry
Find where the bad passwords come from instead of just unlocking the account again.
- Level
- Intermediate
- Length
- About 40 minutes
- Contents
- 3 lessons · 1 video · final exam
- Status
- Published · updated 1 Oct 2026
Skills you'll practise
- Read the lockout policy and work out when an account will unlock
- Find the source of repeated lockouts using DC security events
- Remove stale credentials safely and explain password expiry to remote users
Course outline
- 1.Account lockouts and password expiryVideo · 5 min
- 2.Why accounts keep locking outLesson · 12 min
- 3.Tracing a lockout source across devices and servicesLesson · 14 min
- 4.Password changes, expiry and talking to the userLesson · 12 min
- 5.Account lockouts and password expiry: knowledge checkKnowledge check · 18 questions
- 6.Account keeps locking outScenario
- 7.Final exam6 questions · passing it completes the course, so people who already know the material can test out
Sources it draws on
The lessons and questions are written from these references, so learners can go back to the original.
- Microsoft Learn: Account lockout policy
- Microsoft Learn: 4740(S): A user account was locked out
- Microsoft Learn: 4625(F): An account failed to log on
- Microsoft Learn: 4771(F): Kerberos pre-authentication failed
See it with your own jobs and topics
Tell us about your team and we'll walk you through setup, from choosing jobs to your first skills check.