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...

How to Fix Windows Search Not Indexing Files

If you type a file name into the Windows Search box and nothing shows up, or results are missing ...

How to Reinstall a Chrome Extension Without Losing Data

When a Chrome extension stops working, you might need to reinstall it. But you don't want to lose...

WinRAR Checksum Error and Permission Denied Fix

When extracting a RAR archive in WinRAR, you might see errors like “Checksum error” or “Permissio...

Mount BitLocker Drives on Ubuntu with Dislocker

If you dual-boot Ubuntu with Windows or need to access a BitLocker-encrypted external drive on Li...

How to Fix Network Errors in Command Prompt on Windows 10