Fix Outlook Authentication Failed Error 0x80048820
When Outlook repeatedly prompts for credentials or shows authentication failed error 0x80...
Software comparisons, alternatives, and tool decision notes.
Fit
Decision
Migration
Latest comparisons
Browse labFix Outlook 502 Bad Gateway Error in Office 365
If you're seeing a '502 Bad Gateway' error when trying to use Outlook with Office 365, it usually...
Fix Microsoft Teams 504 Gateway Timeout During Setup
You're setting up Microsoft Teams and hit a 504 Gateway Timeout. The setup process stalls, and yo...
Fix Chrome Profile Error and Sync Disabled
You open Chrome and see a message like 'Profile error occurred' and sync is disabled. This often ...
Fix Windows Activation Service Not Running
If you see an error saying the Windows Activation service is not running, your system may not be ...
Fix Windows Defender 404 Not Found Error on Windows 10
You click to open Windows Defender Security Center and see a 404 page, or the Settings app shows ...