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

Fix Windows Update Setup Failed Rollback Changes

When a Windows update fails and you see "Undoing changes" or "We couldn't complete the updates, u...

Fix Windows Security Blank Screen in Command Prompt

You open Windows Security from Command Prompt and see nothing but a blank window. This can happen...

Fix Microsoft Store Gateway Timeout Error on Windows 11

If you see a "Gateway Timeout" error when opening the Microsoft Store on Windows 11, it usually m...

Fix Windows Security Authentication Error 0x80070035

How to Fix Microsoft Store 'Module Not Found' Error

If you see a 'module not found' error when opening Microsoft Store or launching an app, it usuall...

Fix Windows Terminal Slow Startup: Practical Checks

If Windows Terminal takes several seconds to open—or shows a blank window before loading—it's usu...