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

Fix ERR_CERT_AUTHORITY_INVALID in Chrome

When Chrome shows ERR_CERT_AUTHORITY_INVALID, it means the browser cannot verify...

Fix Windows Update Auto Start Not Working After Update

After a recent Windows update, you might notice that Windows Update no longer starts automaticall...

Fix PowerShell DNS Error 0x8007274d: Practical Steps

Fix PowerShell Permission Denied Error on Startup

Opening PowerShell and seeing a 'permission denied' error can stop you before you start. This usu...

How to Fix Outlook 404 Not Found When Clicking Links

When you click a link in an Outlook email and see a '404 Not Found' error, it usually means the l...

Fix 'Putty Connection Refused' Error on Localhost

When you try to connect to localhost with Putty and get 'connection refused', it usually means th...