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

How to Install Windows Defender on Ubuntu: Workarounds

Windows Defender is a Microsoft product designed for Windows. It does not have an official Linux ...

Windows Activation Key Not Recognized on Ubuntu Dual Boot

If you installed Ubuntu alongside Windows and now your Windows activation key is not recognized, ...

Fix Windows Activation Error 0xc004c003 After Hardware Change

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

How to Fix Outlook Rate Limit Error in Office 365

Understanding the Error

You may see a message like "Too many requests" or "Server busy" ...

Fix Chrome Profile Startup Error: Permission Denied

When you start Chrome and get a 'permission denied' error related to your profile, it usually mea...

Fix Microsoft Teams Token Expired Authentication Failed Error

You're signed into Microsoft Teams and suddenly get a message saying your token has expired or au...