Fix High CPU Usage by MsMpEng.exe (Windows Defender)
If your system feels sluggish and Task Manager shows MsMpEng.exe using 30–100% CPU, Windows Defen...
Knowledge base for software setup, errors, and daily tool work.
Common intent:
Shortcut:
Latest knowledge entries
BrowseFix Chrome Browser Crash on Ubuntu After Update
After updating Ubuntu, Chrome may crash on startup or while browsing. This is often due to GPU dr...
GitHub Actions Runner Not Connecting: Fixes That Work
You've set up a self-hosted GitHub Actions runner, but it never appears online or shows a "runner...
How to Fix Windows Activation Authentication Failed Error
When Windows reports 'activation authentication failed' during activation, it usually means the s...
How to Rearm Windows Activation Grace Period
When Windows is not activated, you have a limited time (typically 30 days) before it starts showi...
Fix Windows Terminal SSL Certificate Error
If you see an SSL certificate error in Windows Terminal—often when using SSH, PowerShell, or WSL ...
Resolve Remote Desktop Proxy Error 0x607
How to Enable Windows Security Service After Manual Stop
Troubleshoot PowerShell Automatic Startup
How to Force Docker Compose Build Without Cache
PowerShell Execution Policy Won't Change – Troubleshooting
Fix Command Prompt Can't Connect to SQL Server
Troubleshoot Windows Security Timeout Issue
How to Fix Windows Activation Permission Denied Error
Fix Microsoft Teams API Rate Limit Error
Activate Windows Without a Product Key in 2025
How to Enable Windows Security Service After Manual Stop
Troubleshoot PowerShell Automatic Startup
How to Force Docker Compose Build Without Cache
PowerShell Execution Policy Won't Change – Troubleshooting
Fix Command Prompt Can't Connect to SQL Server
Troubleshoot Windows Security Timeout Issue
How to Fix Windows Activation Permission Denied Error
Fix Microsoft Teams API Rate Limit Error
Activate Windows Without a Product Key in 2025