Checklists for software errors, setup, and tool workflows.

Windows Update 502 Bad Gateway: Step-by-Step Fix

When you run Windows Update and see a 502 Bad Gateway error, it usually means th...

Windows 11 Activation Error: Product Key Blocked – Fixes

You see “Product key blocked” during Windows 11 activation. This usually means the key is tied to...

How to Fix High Memory Usage by cmd.exe

If you notice that cmd.exe is using a lot of memory—sometimes hundreds of megabytes—it's usually ...

Fix Microsoft Teams Microphone Not Detected in Windows

Common Causes

• Microphone permissions disabled for Teams in Windows settings.

How to Use the OneDrive Sync Dependency Conflict Repair Tool

If OneDrive stops syncing with errors like "Action needed" or "Sync pending", a dependency confli...

Fix Windows Update Stuck on 'Checking for Updates' Due to DNS

If Windows Update gets stuck on 'Checking for updates' for minutes or hours, DNS issues are a com...