Fix Windows Security High Memory Usage (MsMpEng.exe)
You open Task Manager and see Windows Security (the process is MsMpEng.exe) using 500 MB or more ...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesFix Windows Defender Access Denied Error Due to Malware
You try to open Windows Defender Security Center or run a scan, but get an 'Access Denied' error....
Fix Task Scheduler Cannot Connect to Server Error
When you open Task Scheduler and see "Task Scheduler cannot connect to the server" or a similar m...
Outlook Cache Clear Step by Step Guide
If Outlook is running slowly, showing outdated email, or giving sync errors, a corrupted cache is...
OneDrive Setup Guide for Windows 11 Step by Step
If you're setting up OneDrive on a new Windows 11 PC or reinstalling it, this guide walks through...
Firefox Not Responding While Other Browsers Work: Fix
If Firefox is unresponsive—freezing, crashing, or not loading pages—but other browsers like Chrom...
Issue queue
SitemapOneDrive 504 Error Troubleshooting Checklist
How to Generate Microsoft Store Logs
Resolve OneDrive Error 0x8004de40: Step-by-Step Guide
Microsoft Teams Not Recognizing External Webcam
Exchange Server Port Conflict Troubleshooting
Fix Microsoft Store Not Connecting to Internet
Teams Permission Denied on Mac: Quick Fix Guide
How to Fix PowerShell Access Denied on Startup
Fix: Microsoft Store Startup Type Not Available in Services
How to Fix PowerShell Execution Policy Restricted Error
Outlook 0x800ccc0f Connection Error Guide
How to Fix VS Code Debugger Permission Denied on macOS
How to Generate Microsoft Store Logs
Resolve OneDrive Error 0x8004de40: Step-by-Step Guide
Microsoft Teams Not Recognizing External Webcam
Exchange Server Port Conflict Troubleshooting
Fix Microsoft Store Not Connecting to Internet
Teams Permission Denied on Mac: Quick Fix Guide
How to Fix PowerShell Access Denied on Startup
Fix: Microsoft Store Startup Type Not Available in Services
How to Fix PowerShell Execution Policy Restricted Error
Outlook 0x800ccc0f Connection Error Guide
How to Fix VS Code Debugger Permission Denied on macOS