Windows Antivirus Machine is a rogue security software, also known as "scareware",which will generates bogus or misleading alerts, in an attempt to lure users into participating in fraudulent transactions.
Windows Antivirus Machine is a malicious software which needs to be remove from your computer!
You can follow the
Windows Antivirus Machine Removal Instructions over at MalwareTips.com
Windows Antivirus Machine Removal Instructions:
http://malwaretips.com/blogs/windows-active-guard-virus/