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

Fix PowerShell Proxy Authentication Failed Errors

How to Fix Chrome DNS_PROBE_FINISHED_NXDOMAIN Error

When you see DNS_PROBE_FINISHED_NXDOMAIN in Chrome, it means the browser can't f...

Fix Windows Security Error 0x80073b01: Step-by-Step Guide

You try to open the Windows Security app and get error code 0x80073b01. The app may crash or refu...

How to Fix Windows Update 404 Not Found Error

When Windows Update returns a 404 Not Found error, it usually means the update server can't locat...

Fix Windows Defender Blank Screen After Update

After a recent Windows update, you may open Windows Security (Windows Defender) and see a blank w...

Fix OneDrive Sync Auto Start Not Working in Windows 11

OneDrive is set to start with Windows by default, but sometimes it doesn't. This usually shows up...