Entra Shared Device - Truncated Login

1. Disable Auto-Fill in Edge:
   • Open Edge → Settings → Profiles → Passwords → Disable "Save and fill passwords."
2. Clear Saved Accounts in Edge:
   • Go to Edge → Settings → Profiles → Sign-in Info → Delete saved accounts.
   • Alternatively, visit edge://settings/clearBrowserData and clear "Passwords" and "Auto-fill data."

2. Clear Windows Credential Manager

Sometimes, cached credentials in Windows may store an incomplete email address.

• Control Panel → Credential Manager → Windows Credentials
• Remove any saved Microsoft or Entra ID logins.

3. Review Entra Shared Device Mode Sign-In Settings

If the device is in Shared Device Mode, previous sign-in information is usually wiped after logging out, but partial credentials may still persist.

• If managed via Intune, check the Multi-User Sign-in Policy (MHS) settings and verify whether:
  • "Remember user credentials" or "Session Persistence" is enabled.

4. Clear General Device Cache

The Web Account Manager (WAM) cache may retain previous sign-in details, causing truncated emails to appear.

# Clear Web Account Manager Cache
Get-ChildItem "HKCU:\Software\Microsoft\Windows\CurrentVersion\AAD\Cache\" | Remove-Item -Force -Recurse

# Clear Credential Manager
cmdkey /delete:target_name