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

Fix Windows Activation Sync Issue Between Windows and Ubuntu

If you dual-boot Windows and Ubuntu and suddenly see a “Windows isn’t activated” message, the iss...

Fix OneDrive Sync 404 Error After Windows Update

After a Windows update, you might see a 404 error when trying to sync files in OneDrive. This usu...

Fix Windows Defender Rate Limit Error & Permission Denied

When Windows Defender throws a "rate limit error" or "permission denied" message, it typically ha...

Fix Windows Defender Blank Screen in Windows 10

If you open Windows Defender Security Center in Windows 10 and see nothing but a blank white or g...

How to Fix DNS Probe Finished NXDOMAIN Error in Chrome

When you see "DNS probe finished NXDOMAIN" in Chrome, it means the browser can't find the website...

Fix Windows Search Access Denied for Administrator Account

Why You See 'Access Denied' as Administrator

You're logged in as an administrator, but Wi...