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

Fix Windows Defender 404 Error in Command Prompt

When you try to run Windows Defender commands from Command Prompt and get a '404 Not Found' error...

How to Fix DNS Errors by Setting Up Windows Defender

If you're seeing DNS errors while browsing—like "DNS server not responding" or "DNS probe finishe...

Fix PowerShell Cannot Connect to Localhost Due to Firewall

When you try to connect to a local service (e.g., a web server, database, or custom application) ...

Fix Task Scheduler Port 80 Already Allocated Error

When you see "unable to bind to port 80 already allocated" in Task Scheduler, it means another pr...

Task Scheduler Configuration Checklist for Reliable Automation

You set up a scheduled task, but it doesn't run, runs twice, or stops after a few days. This happ...

Fix Windows Security Authentication Error 0x80070035