
Outlook 404 Not Found Web App: Fixes and Checks
If you're seeing a 404 Not Found error when trying to open Outlook on the web (formerly Outlook W...
Software troubleshooting desk

If you're seeing a 404 Not Found error when trying to open Outlook on the web (formerly Outlook W...

You open Windows Search and get an error about a token being expired or permissions being invalid...

You open Edge and see the profile sync status is paused with a message about no internet connecti...

If you're troubleshooting command-line issues in Windows Terminal, enabling logging can help capt...

After a Windows Terminal update, you might see errors like “token expired” or “authentication fai...

When Outlook crashes, hangs, or shows sync errors, support teams often ask for log files. Here's ...