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

Fix Bluetooth Service Not Running in Windows 11

You open Bluetooth settings in Windows 11 and see the toggle is grayed out, or your Bluetooth dev...

Fix Chrome Certificate Error: Invalid Authority SSL Certificate

If Chrome shows 'Your connection is not private' with 'NET::ERR_CERT_AUTHORITY_INVALI...

How to Fix Git 'index.lock' File Exists Error

When you see fatal: Unable to create 'path/.git/index.lock': File exists., G...

How to Enable Bluetooth Service in Windows 11

If Bluetooth suddenly stops working in Windows 11—the icon disappears, devices won't pair, or...

Cloudflare SSL Full Strict Origin Server Troubleshooting

When you set Cloudflare SSL/TLS encryption mode to Full (strict), your browser-to-Cloudflare conn...

Fix Git Push Rejected Non Fast Forward Error