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

How to Fix Git Clone Permission Denied (Publickey)

When you run git clone and see Permission denied (publickey), Git canno...

Fix Windows Security Offline Installer Error 0x80070643

You're trying to install Windows Security (formerly Windows Defender) using an offline installer,...

How to Fix Windows Activation High CPU Usage

If you notice your PC's CPU usage spiking to 100% for no clear reason, a hung or misconfigured Wi...

Fix Permission Denied Errors in GitHub Actions Workflows

You're running a GitHub Actions workflow and it fails with a permission denied error...

How to Clear Windows Security Cache: A Practical Guide

If Windows Defender or another security tool is acting up—showing stale alerts, failing to update...

Fix Outlook Connection Timeout After Windows Update

Why Outlook times out after a Windows update

After a Windows update, Outlook may fail to ...