There’s been a tweak to Windows Defender, the built-in anti-virus software that comes free with Windows 8 and 10, that can help keep your PC safe. You can turn Windows Defender off if you choose to use a third-party anti-virus. But what happens if that anti-virus subscription or free trial ends and you forget to Windows Defender back on? You could be left unprotected in a world of scary people looking to ruin your PC.
Fortunately, in Windows 10, Defender will automatically reactivate if you don’t have another active anti-virus program. This could save you a world of hurt.