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 ...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listHow to Reduce Windows Security Memory Usage
Windows Security (formerly Windows Defender) can sometimes use more memory than expected, especia...
How to Fix Windows Update Invalid Configuration Error
You try to run Windows Update and get an error saying the configuration is invalid. This usually ...
How to Fix PowerShell Script Permission Denied Error
You try to run a PowerShell script and get a 'permission denied' error. This can happen for sever...
How to Fix Command Prompt Auto Start Not Working
If you've set Command Prompt to start automatically on login—via the Startup folder, Registry, or...
How to Fix 'BitLocker Port Already Allocated' on Windows 11
When enabling BitLocker on Windows 11, you might see the error: "BitLocker port already allocated...
Topic paths
Quick titles
BitLocker Setup Fails on New SSD: How to FixDocker MySQL Volume Permission Denied FixResolve JDK Path Error on WindowsWindows 10 Remote Desktop Module Missing Error GuideFix Go Proxy Not Working with Private RepositoryWindows 11 Task Scheduler Reset GuideHow to Fix BitLocker Service Unavailable ErrorFix Command Prompt Settings Not Saving in Windows