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

Fix Windows Update Not Downloading: Permission Errors

When Windows Update fails to download files and shows errors like 0x80070005 or 0x80070020, the c...

Fix Windows Activation Error Invalid Configuration

You try to activate Windows and see an error saying “invalid configuration”. Thi...

Fix Putty Connection Refused Due to Windows Firewall

You're trying to SSH into a remote server using Putty, but you get a 'Connection refused' error. ...

How to Fix High Memory Usage from Windows Activation

If you notice your PC running slow and Task Manager shows high memory usage (often 50% or more) w...

Fix Remote Desktop Failed to Start in Windows 10

When you try to connect to a Windows 10 PC using Remote Desktop and get an error like "Remote Des...

Outlook Authentication Failed: Checklist to Verify Credentials