Fix 'Not Recognized as Internal or External Command' Error
When you type a command in the Command Prompt and see 'is not recognized as an internal o...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix Windows Activation File Locked Registry Issue
You try to activate Windows, but get an error saying the activation file is locked or the registr...
Windows Security Not Opening? Here's How to Fix It
You click the Windows Security icon in the taskbar or try to open it from Settings, but nothing h...
Fix 'Syntax Error Near Unexpected Token' When Activating venv
When you try to activate a Python virtual environment on Linux or macOS and see bash: synta...
Fix Windows Activation Service Unavailable Error
You try to activate Windows, but see 'Activation service unavailable' or 'We can't activate Windo...
Fix Microsoft Store Rate Limit Error After Update
After a recent Windows or Microsoft Store update, you might see a rate limit error when trying to...
Topic paths
Quick titles
Fix BitLocker 404 Error When Unlocking a DriveHow to Fix Windows Defender Loading ForeverFix Edge Update Failed on Windows 10: Step-by-Step GuideResolve PowerShell Connection Refused ErrorsFix Microsoft Teams Connection Refused on StartupRemote Desktop Backup Restore Tool Not Working: FixesTroubleshoot Windows Search on Ubuntu Dual BootMicrosoft Store Not Connecting in Windows 10