Fix 'File Being Used by Another Process' in PowerShell
When you run a PowerShell script that tries to read, write, or delete a file, you might see the e...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listWindows Activation Token Expired After Hardware Change: Fix
After replacing a motherboard, CPU, or hard drive, you may see a message that your Windows activa...
Fix 'File Locked by Another User' in Microsoft Teams
You're editing a file in Microsoft Teams and see the message: "This file is locked by another use...
How to Fix 'Command Not Found' in Command Prompt
You type a command in Command Prompt and get 'xxx' is not recognized as an internal or exte...
Fix Microsoft Store App Not Installing Due to Dependency Conflict
When a Microsoft Store app fails to install with an error about a missing or conflicting dependen...
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 ...
Topic paths
Quick titles
Error 0x80070643 Fix: Windows Activation UpdateHow to Fix PowerShell Connection Refused ErrorTroubleshoot Chrome Proxy SettingsHow to Activate Windows Without a Product Key: Legal MethodsResolve 404 Not Found in Command PromptHow to Enable and Use Remote Desktop on Windows 11Windows Terminal Not Showing CMD: Troubleshooting GuideFix Windows Activation Port Already Allocated & Firewall Errors