Forum Discussion

Copper Contributor

Jan 03, 2019

Solved

Office365 Migration

Hello, On Friday December 28th we started our Office365 tenant to tenant migration. On the old tenant we disabled dirsyn (Azure AD Connect) and then uninstalled the tool altogether from our on-pr...

On-Premises

ChrisHoardMVP
Jan 03, 2019
Yes, can imagine the frustration!

Let me know how the password reset on AD goes for an impacted user and if this resolves it. If not, here is the WAM override method which worked for another community user not too long back.

https://techcommunity.microsoft.com/t5/Office-365/Outlook-365-Need-Password-Issue/m-p/298287#M18221

Let me know how that goes.

Best, Chris

Ahmed_Masoud97

Steel Contributor

Sep 10, 2026

The affected PCs are likely retaining Windows Web Account Manager and Workplace Join credentials from the source tenant. Reinstalling Office or changing Autodiscover settings usually won’t fix that.

Run dsregcmd /status first. Then remove the old account from Settings > Accounts > Access work or school and from Email & accounts. Restart Windows, then connect the new tenant account.

Also remove any old Office-related entries from Control Panel > Credential Manager > Windows Credentials.

You can then run Microsoft’s signoutofwamaccounts.ps1 script as administrator to clear cached Office sign-in tokens before signing in again.

Be careful with dsregcmd /leave. Don’t use it indiscriminately on Microsoft Entra joined or hybrid joined devices because it changes the device registration state rather than just clearing the old Office identity.