Related to the poster above, you're fine to uninstall existing Anti-virus if you're running Windows 8 at minimum.
For Windows 8 and up, Windows Defender is a more complete anti-malware solution, which includes various malware, spyware, virus, whatever the infosec community feels like calling it that day. Has real-time protection as well. It works pretty well. It won't save you if you click on every "Download here!" button you see, but no A/V system can save you there.
Also, make sure you have the 64 bit version of the Visual Studio 2015 runtimes installed
https://www.microsoft.com/en-us/download/details.aspx?id=48145
For Windows 8 and up, Windows Defender is a more complete anti-malware solution, which includes various malware, spyware, virus, whatever the infosec community feels like calling it that day. Has real-time protection as well. It works pretty well. It won't save you if you click on every "Download here!" button you see, but no A/V system can save you there.
Also, make sure you have the 64 bit version of the Visual Studio 2015 runtimes installed
https://www.microsoft.com/en-us/download/details.aspx?id=48145