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

UFW Deny Port But Still Accessible: Fixes and Checks

You set a UFW deny rule for a specific port, but the port remains accessible from outside. This i...

Fix Microsoft Store Permissions Issue in Windows 10

How to Fix BitLocker Drive Slow on Startup

If your Windows PC takes unusually long to boot after enabling BitLocker drive encryption, you're...

Fix Chrome SSL Certificate Error: Not Secure Site

When you visit a website and Chrome shows 'Not Secure' in the address bar, it means the site's SS...

How to Fix Windows Update Error 0x80070643

When Windows Update fails with error 0x80070643, the update usually stops at a certain percentage...

Fix Chrome Profile File Locked by Another User

If Chrome shows "Your profile could not be opened correctly" or "The profile appears to be in use...