Knowledge base for software setup, errors, and daily tool work.

How to Fix Abnormal Memory Usage in CMD on Windows

Fix Windows Defender Service Not Starting (Error 0x80070422)

You try to start Windows Defender but get error 0x80070422: “The service cannot be started, eithe...

How to Fix Windows Update Error 0x8007000d

When you see error 0x8007000d during Windows Update, it usually means a file is missing or corrup...

Fix Windows Defender SSL Certificate Error 0x80072f0d

When Windows Defender or Microsoft Defender Antivirus shows error code 0x80072f0d, it usually mea...

Fix High CPU Usage by Antivirus Scanning PowerShell

If you notice that PowerShell (powershell.exe or pwsh.exe) is using high CPU, and you have an ant...

Fix PowerShell Startup Script Not Running After Logon

You’ve set up a PowerShell script to run at startup, but after logging in, nothing happens. The s...