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

How to Show Hidden Icons on Taskbar in Windows 10

You may notice that some app icons in the system tray (notification area) are hidden behind an up...

Fix Nginx Permission Denied for Static Files

Common Causes

When Nginx returns a 403 Forbidden or 'permission denied' error for...

Fix Nginx Redirect Loop: Permanent Solutions

You're trying to reach a site, and the browser keeps bouncing between two URLs until it gives...

Fix npm install Permission Denied on Shared Hosting

Fix ERR_CERT_AUTHORITY_INVALID on Localhost

When testing a local web app, you may see ERR_CERT_AUTHORITY_INVALID in Chrome or si...

Fix Windows 11 Blue Screen After Update Using SFC /Scannow

After a Windows 11 update, you might see a blue screen error on boot or during use. One common fi...