Not Sure If You Are Infected - Try The Malicious Software Removal Tool
Microsoft have software to remove malware and virus infections and is updated every month through Windows update.
However there are no indications of how to run it through the program menu.
If you suspect you may have an infection it is worthwhile running it.
So how do you run it?
First you need to enter - MRT - in the search of either Windows 7 , 8 , or 10
A description will then appear
Then choose the type of scan you would like .
I would pick the full scan which can take several hours to run.
At the end you will see the results.
Remember this is not a replacement for your antirus software or for not keeping your operating system and software up to date.