Checklists for software errors, setup, and tool workflows.

How to Repair an Outlook Data File (.pst/.ost)

If Outlook suddenly won't open, shows error messages about a data file, or you can't see certain ...

Fix Windows Search Authentication Failed Configuration Error

You may see a notification that Windows Search indexing couldn't start due to an authentication f...

Fix Windows Terminal Module Not Found Permission Denied

When you see 'module not found' or 'permission denied' in Windows Terminal, it usually means the ...

How to Fix Outlook Rate Limit Error in Office 365

Understanding the Error

You may see a message like "Too many requests" or "Server busy" ...

Fix Windows Search Not Finding Files After Migration

After moving files to a new drive or PC, Windows Search may stop returning results for those file...

Fix Microsoft Store App Version Mismatch Errors

You open a Microsoft Store app and get an error about a version mismatch, or the app won't start ...