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

Windows Defender Real-Time Protection Error 0x80070422 Fix

You try to turn on Windows Defender real-time protection, but you get error 0x80070422. This usua...

Fix 'Microsoft Store Module Not Found' Error on Reinstall

When you try to reinstall an app from the Microsoft Store, you might see an error like "module no...

Fix Windows Search Authentication Failed Error 0x80070005

When Windows Search fails with error code 0x80070005 and an "authentication failed" message, it u...

How to Fix Command Prompt Not Opening in Windows

When Command Prompt (cmd.exe) refuses to open—either by clicking, typing 'cmd' in Run, or via the...

How to Fix Outlook Access Denied Error

When Outlook throws an 'access denied' error, it usually means the application can't reach your d...

Fix Outlook Blank Screen After Office Installation

Symptom and likely cause

After installing or updating Microsoft Office, Outlook may open ...