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

Fix Error 0x80070426 in Microsoft Teams Microphone

When you see error code 0x80070426 in Microsoft Teams while trying to use your microphone, it usu...

How to Fix Microsoft Teams 404 Error with a Clean Reinstall

If you're seeing a 404 error in Microsoft Teams—often when opening a link or launching the app—it...

How to Add PowerShell to System PATH Variable in Windows

If you've installed PowerShell but can't launch it from a Command Prompt or another terminal with...

Outlook Authentication Failed After Password Change: How to Fix

You changed your account password, and now Outlook keeps prompting for credentials or shows 'auth...

Fix Windows Search Access Denied for Administrator Account

Why You See 'Access Denied' as Administrator

You're logged in as an administrator, but Wi...

Fix Windows Security Service Unavailable Permission Denied

You open Windows Security and see 'Service unavailable' or 'Permission denied'. The app may not o...