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

Fixing Nginx Upstream Connection Refused on Port 443

You see "upstream connection refused" in your Nginx error log when proxying requests to p...

How to Reset Taskbar Icons in Windows 11: 4 Methods

If your Windows 11 taskbar icons are missing, showing generic file icons, or acting strangely, th...

Fix Windows Update Error 0x80070005 by Taking Ownership

What Causes Error 0x80070005?

This error usually means Windows Update doesn't have pe...

Fix npm run build: Module Not Found Error

When you run npm run build and see a Module not found error, the bu...

Checklist for Fixing Shared Folder Access in Windows

When you can't access a shared folder on Windows, the problem usually comes down to permissio...

Fix Windows 11 Blue Screen After Update Uninstall Problem

You uninstalled a Windows 11 update to fix another issue, but now you're stuck with a blue sc...