How to Fix Windows Defender File Locked Error 0x80070020
Error 0x80070020 often appears when Windows Defender (Microsoft Defender Antivirus) is scanning a...
Software comparisons, alternatives, and tool decision notes.
Fit
Decision
Migration
Latest comparisons
Browse labWindows Defender Version Mismatch: Practical Fix Checklist
If you see a “version mismatch” error in Windows Defender (Microsoft Defender Antivirus), it usua...
How to Fix Windows Defender Threat Service Stopped
If Windows Defender shows a yellow warning that the threat service has stopped, real-time protect...
How to Fix Outlook High CPU Usage with Repair Tools
Outlook using 50% or more of your CPU can slow your whole system. This often happens with large m...
Fix Microsoft Teams 504 Gateway Timeout During Setup
You're setting up Microsoft Teams and hit a 504 Gateway Timeout. The setup process stalls, and yo...
How to Fix Windows Defender Error 504: Step-by-Step Guide
If you see Windows Defender error 504, it usually means the security service can't connect or upd...