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...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesHow to Fix Windows Update Stuck on Pending Install
You open Windows Update and see updates listed as 'Pending install' but nothing happens when you ...
How to Reset Chrome Profile Settings Correctly
If Chrome is acting up—settings won't save, extensions misbehave, or the browser crashes on start...
How to Fix PowerShell Access Denied Error
When you see "Access Denied" in PowerShell, it usually means the script or command lacks the nece...
How to Fix Microsoft Store Not Opening After Update
After a Windows update, the Microsoft Store may fail to open—clicking the icon does nothing, or i...
Fix Windows Defender Update Error 0x80070643
If you see error 0x80070643 when updating Windows Defender, it usually means the update failed du...
Issue queue
SitemapBlank Microsoft Store? Fix When wsreset Has No Effect
Command in PATH Still Shows Not Found
Restore Windows Search After a System Update
How to Fix Docker Daemon Not Running on Windows 10
Resolve Windows Task Scheduler Login Loop 0x8007052e
Troubleshoot Windows Terminal Update Permission Error
Windows Security Offline Installer: Checklist & Steps
Windows 11 Search Rate Limit Error Troubleshooting
Fix Docker Compose .env File Not Found on Mac
BitLocker Best Settings Checklist for Security
Troubleshoot Windows Update 0x80073712
Git Clone Permission Denied Publickey: Fix Guide
Command in PATH Still Shows Not Found
Restore Windows Search After a System Update
How to Fix Docker Daemon Not Running on Windows 10
Resolve Windows Task Scheduler Login Loop 0x8007052e
Troubleshoot Windows Terminal Update Permission Error
Windows Security Offline Installer: Checklist & Steps
Windows 11 Search Rate Limit Error Troubleshooting
Fix Docker Compose .env File Not Found on Mac
BitLocker Best Settings Checklist for Security
Troubleshoot Windows Update 0x80073712
Git Clone Permission Denied Publickey: Fix Guide