This alert is a fake that are created by an adware or malicious software. Most important to know, you don`t need to urgently call Microsoft. Simply ignore this “Windows System Alert”.
Myantispyware team
Author: Myantispyware team
Myantispyware is an information security website created in 2004. Our content is written in collaboration with Cyber Security specialists, IT experts, under the direction of Patrik Holder and Valeri Tchmych, founders of Myantispyware.com.