Save your money. Anti-Virus Software is no longer needed if you have Windows 10 or even Windows 8 for that matter. Windows Defender comes built in with Windows 8 or newer and does the job.
The anti-virus software can actually be causing problems because of how they are intergrated into to operating system.
I have verified this with Microsoft and I have uninstalled anti-virus software on all my computer for several weeks now.
However, I have kept Malware Bytes installed since it seems to be preventing malware from being installed.
Please leave your comments so we all can share our experiences.