Fix OneDrive Token Expired Error (0x8004de40)
You open OneDrive and see an error like “Your token has expired” or code 0x8004de40. This usually...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listHow to Reset VMware Network Adapter Settings
If your VMware virtual machine loses network connectivity, shows an unconfigured adapter, or fail...
How to Fix Windows Search Not Working in Windows 10
When Windows Search stops returning results or the search box does nothing, it usually points to ...
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...
How to Fix Windows Terminal Cache Not Clearing
If you've noticed Windows Terminal opening with old settings, displaying ghost profiles, or faili...
Fix Windows Security Service Stopped Working in Windows 10
If you see a notification that the Windows Security service has stopped working, your antivirus o...
Topic paths
Quick titles
How to Resolve Command Prompt Dependency ErrorsHow to Activate Windows with a Digital LicenseFix Outlook DNS Error Configuration: Step-by-StepTroubleshoot Netsh Command DNS Reset FailuresCommand Prompt Keeps Closing? Here's How to Fix ItFix Module Not Found in Command PromptFix Task Scheduler File Locked ErrorRemote Desktop Slow Performance Troubleshooting Guide