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

Fix Git Clone Permission Denied (publickey) on Mac

When you run git clone and see Permission denied (publickey), Git canno...

Fix Windows Search 502 Bad Gateway Errors Caused by Firewall Blocks

You open Windows Search, type a query, and get a "502 Bad Gateway" error. This often means a fire...

PowerShell Command Not Found but Works in CMD

How to Fix Windows Update Error 0x8024402c

When Windows Update fails with error 0x8024402c, it usually means the update client can't connect...

Chrome Cannot Connect to localhost: Common Fixes

You try to open http://localhost in Chrome and get an error like 'This site can’t be reached' or ...

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...