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 Clear Windows Security Cache: Setup & Steps

Windows Security (formerly Windows Defender) maintains a cache of scan results, definitions, and ...

Chrome Cache Not Clearing After Update: Fixes That Work

After a Chrome update, you may notice that clearing the cache doesn't seem to work—old pages stil...

How to Fix systemd Service Restarting Repeatedly Error

Fixing Microsoft Teams Error 80070005: Permission Denied

When you see error code 80070005 in Microsoft Teams, it usually means the app can't access a need...

Fix Outlook High Memory Usage with Exchange Accounts

Outlook using excessive memory (often 1GB or more) with an Exchange account can slow down your sy...