Fix Windows Defender Service Unavailable Error
You open Windows Security and see the message 'Windows Defender service unavailable' or 'Windows ...
Software comparisons, alternatives, and tool decision notes.
Fit
Decision
Migration
Latest comparisons
Browse labFix Windows Security Cannot Connect to the App
When you see 'Windows Security cannot connect to the app' while trying to open Windows Security o...
Fix Windows Search Auto Start via Registry
If Windows Search starts automatically every time you boot your PC and you want to stop it (or en...
How to Fix PowerShell Rate Limit Errors in Microsoft Graph API
When you run a PowerShell script against the Microsoft Graph API, you might encounter HTTP 429 er...
Fix Windows Security Authentication Failed Smart Card Not Working
You insert your smart card, enter your PIN, and Windows Security reports “Authentication failed.”...
Fix PowerShell Execution Policy Error on Mac
If you see an error like “cannot be loaded because running scripts is disabled on this sy...