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

Fix CMD Service Unavailable Due to Group Policy

Situation

You open Command Prompt and see an error like "Command Prompt has been disabled...

Fix Chrome Extension Disabled Automatically

You install a useful extension, but Chrome keeps turning it off. Sometimes it says the extension ...

Fix Git Clone Permission Denied (Publickey) but SSH Works

You try to git clone a repository and get a "Permission denied (publickey)" error, y...

Fix Windows Security Connection Timeout After Update

After installing a Windows update, you might see a "Connection timeout" error when opening Window...

How to Fix Windows Defender File Locked Error 0x80070020

Error 0x80070020 often appears when Windows Defender (Microsoft Defender Antivirus) is scanning a...

Fix Windows Update Offline Installer Not Working on Windows 10

You download the .msu or .cab file for a Windows 10 update, double-click it, and nothing happens—...