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

Windows Defender Failed to Start: Manual Malware Check Guide

If Windows Defender fails to start, you might see an error like "Windows Defender service won't s...

Fix PowerShell Service Unavailable Error on Windows

You're running a PowerShell command and get a red error: "Service unavailable". ...

Fix Maven Dependency Resolution Failed in IntelliJ

Fix Windows Defender Authentication Failed Group Policy Error

You may see an error saying "Windows Defender authentication failed" after applying a Group Polic...

Fix Task Scheduler '404 Not Found' After Windows Update

After a recent Windows update, you might open Task Scheduler and see a "404 Not Found" error when...

Fix SSL Certificate Verify Failed in Command Prompt

If you see SSL certificate verify failed when running commands in Command Prompt, it...