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

Fix Microsoft Store Blank Screen When Opening an App

You launch an app from the Microsoft Store, and instead of the app window, you get a blank screen...

Fixing Command Prompt Dependency Conflict Permission Denied

You run a command in Command Prompt and get an error like "Access is denied" or "Permission denie...

Outlook Proxy Settings Not Saving: Fixes That Work

Outlook proxy settings not saving usually happen after a Windows update, antivirus change, or mis...

Fix Windows Update Error Due to Port 80 Already in Use

Windows Update may fail with error 0x8024402c or similar when another application is already usin...

Fix Windows Security Virus Scan Stuck at 99%

You run a full virus scan in Windows Security, and it gets stuck at 99% for minutes or hours. Thi...

How to Fix '404 Not Found' Error in Windows Command Prompt