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

Fix Windows Defender Service Not Starting (Error 0x80070422)

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

Fix Command Prompt High CPU Usage Caused by Windows Update

You open Task Manager and see Command Prompt (cmd.exe) using a lot of CPU – sometimes 30% or more...

Fix PowerShell Remote Connection Refused Error

Fix BitLocker Permission Denied Error 0x80070005

You try to enable BitLocker or change its settings, and get a "Permission denied" error with code...

Setup Windows Security for Small Business: A Practical Guide

If you're running a small business on Windows, you can rely on the built-in Windows Security (for...

BitLocker High CPU Usage Caused by TPM: How to Fix

If your system is running slow and Task Manager shows high CPU usage from the System process or B...