If you’re faced with this issue, you can try our recommended solutions below in no particular order and see if that helps to resolve the issue. Clear browser cache Run AV scan using third-party tools ...

Some PC users have reported cases whereby the Security Intelligence Update for Microsoft Defender Antivirus fails to work on their Windows 11 or Windows 10 computer and in Windows Security app. Under ...

Here are the basics: Microsoft Defender is the virus protection integrated into Windows by default. If no other antivirus program is installed and activated, Defender protects you against viruses. You ...

Citrix released an advisory on Thursday about troublesome Windows Defender definition updates that break Delivery Controllers and Cloud Connectors running Microsoft’s antivirus. The issue is due to ...

Formerly known as Windows Defender, Microsoft Defender is an antivirus protection program that's included with Windows 10. You can enable or disable Microsoft ...

The problem arose when Firefox was running, leading Windows Defender’s Antimalware Service Executable (Msmpeng.exe) to act up, causing a significant increase in CPU usage. Users reported that their ...

Windows Defender is a capable antivirus solution built into Windows itself. Unless you’ve installed a different antivirus program on your Windows 11 or Windows 10 PC, your PC is using it right now.