Struggling with Windows Defender not turning on in Windows 11? Discover proven, step-by-step fixes to restore your security.

Windows Defender has been available as a built-in antivirus for Windows 10 and earlier for several years now. The antivirus has grown quite popular with Windows users thanks to being lightweight and ...

Ask your administrator Start Windows Security Health Service Reinstall using Windows Terminal Check Group Policy settings Use System Restore point Before you begin, you should know that now Windows ...

This past week Microsoft released the Patch Tuesday updates for August 2025 on Windows 10 (KB5063709 / KB5063877 / KB5063871 / KB5063889) and for Windows 11 (KB5063878, KB5063875). Aside from that, ...

To fix high memory usage by Antimalware Service Executable on Windows 11, try turning off real-time protection, uninstalling pirated apps, scanning for malware, rescheduling Windows Defender scans, or ...

It is possible to enable or disable Windows Defender on Windows 11 or Windows 10 PC using the Local Group Policy Editor. If you mistakenly turned on that setting in ...

A roundup of the best software and apps for Windows and Mac computers, as well as iOS and Android devices, to keep yourself safe from malware and viruses. The new Defender app is meant to offer "your ...

Q: Are Windows Defender warnings that pop up with a phone number legit? A: Microsoft’s built-in security tool has improved over the years, and it still blocks plenty of everyday threats. But the ...