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

Fix Windows Activation Error 0xc004c003 After Hardware Change

If you see error 0xc004c003 after upgrading your PC's motherboard, CPU, or other major hardware, ...

Windows Security for Ubuntu Installation Checklist

Before You Install Ubuntu

If you're dual-booting Windows and Ubuntu, or replacing Windows...

Fix Windows Security Virus Scan Slow Performance

If your Windows Security (formerly Windows Defender) virus scan takes forever or slows down your ...

Fix Microsoft Store Error 0x80070005: Permission Denied

You try to install or update an app from the Microsoft Store and see error 0x80070005, often acco...

Fix Microsoft Teams Screen Share Access Denied Error

When you try to share your screen in Microsoft Teams and get an Access Denied me...

Microsoft Teams Update Not Installing from Office 365: Fixes

You see an update available for Microsoft Teams in your Office 365 portal, but when you try to in...