How do I reinstall Outlook? I have Office 365

Question

I am trying to access outlook from my new PC - it was migrated over by the IT person but I get this error:Correlation Id: ff000000-0000-0000-0000-000000000000

Timestamp: 2026-04-30T15:15:28.000Z

DPTI: 80ea0eb19d269f97da6bcae507518a5f3fbe610ba094c96c46ed50be0b5f5337

Message: The credential is invalid. Unexpected sub status (6008).

Tag: 657rx

Code: 2150171662

Answer 1

Hi,

Via https://learn.microsoft.com/en-us/answers/questions/5675284/how-to-fix-it-the-credential-is-invalid-unexpected

In the meantime, I recommend some steps below 1/ Sign out of all Office/PowerPoint/Teams apps. 2/ Clear cached authentication data:

• Delete contents of this folder: %localappdata%\Packages\Microsoft.AAD.BrokerPlugin_cw5n1h2txyewy\
• Open Control Panel > Credential Manager > Windows Credentials and remove any Microsoft/Office‑related credentials.
• 3/ Go to Settings > Accounts > Access work or school, disconnect your work/school account, restart the device, and reconnect it. 4/ Try signing in again via https://office.com to confirm credentials are valid.

Please try these steps and let me know.