Checklists for software errors, setup, and tool workflows.

Fix Windows Activation Failed to Start Setup Configuration Error

You might see this error when trying to activate Windows after a hardware change, a major update,...

Fix Windows Security Access Denied When Opening Settings

You click Windows Security in the Start menu or try to open Virus & threat protection, and instea...

Fix Outlook High CPU Usage Caused by Antivirus Scanning

Symptoms and Likely Cause

You notice Outlook consuming 50% or more CPU, making your syste...

Fix Windows Activation Blank Screen Stuck on Startup

You boot your PC and instead of the desktop, you see a blank screen with a Windows activation wat...

Fixing Outlook Dependency Conflicts with Office 365

When Outlook stops working after an Office 365 update or a new add-in, a dependency conflict is o...

Fix Microsoft Teams Port Already Allocated Error

You launch Microsoft Teams and see an error: 'port already allocated'. This usually means another...