If not properly managed, Windows Defender Application Control, a security feature with Windows, could be a potential security vulnerability.

If you are facing Microsoft Defender problems on your iPhone, iPad, Android or Windows device, here are some troubleshooting solutions to help you.

A Windows Defender bug is reportedly negatively impacting the performance of Intel-based Windows 10 and Windows 11 PCs.

If Windows Defender Application Guard or Windows Sandbox does not open, with error 0x80070003 or 0xC0370400 see this post.

Microsoft is releasing a Windows Defender Application Guard extension for Chrome and Firefox today, which will send you to Microsoft's Edge browser if you visit a potentially shady website.

Windows Defender Application Guard (WDAG) is also a relative newcomer in Windows 10 Pro and Enterprise editions that admins can use to create a list of trusted websites and local resources.

Windows Defender Application Guard is a Windows 10 feature that enables Microsoft Edge to launch in an environment that is walled off from the rest of the operating system.

Windows 10 in S-Mode is a useful first step to delivering application control, locking down systems to Store apps only, with the option of using policy to prevent users removing S-Mode.

Software experts from Trail of Bits — a well-known security R&D company — have sandboxed Windows Defender, the default antivirus solution that ships with recent Windows editions.

This is a pretty neat feature that I'm sure Windows admins know all about, but it looks like it is for mainstream use now as it's not limited in Windows 11 to Pro and above versions. Which is ...