There is always the option to just use Windows 10 Defender which includes anti-virus and anti-malware protection that provides the same level of protection against malware as Microsoft Security Essentials (MSE) provides on older operation systems plus enhanced protection against rootkits and bootkits (and it's probably easier to use for the novice).
If you have Windows 10 Anniversary update, it includes Limited Periodic Scanning and allows you to also use a third party anti-virus program as your primary protection. Starting with Windows 10 Creators Update, Windows Defender is called Windows Defender Antivirus...it includes always-on protection which consists of real-time protection, behavior monitoring and heuristics to identify and block malware based on known suspicious and malicious activity. Windows Defender Antivirus Creators Update is also compatible with any third-party anti-virus. Starting with Windows 10 Fall Creators Update, Windows Defender Antivirus includes Exploit Guard with four components of new intrusion prevention capabilities designed to lock down a system against various attack vectors and block behaviors commonly used in malware attacks before any damage can be done.
If you prefer not to use Windows 10 Defender or cannot afford to pay for an alternative, then I would recommend Kaspersky Free Antivirus, Sophos Home Free Antivirus, Panda Cloud Antivirus or Bitdefender Anti-virus Free Edition any of which can be used instead of or in conjunction with Windows 10 Anniversary update, Windows 10 Creators Update and Windows Defender Antivirus.
Note: Although Windows 10 Defender provides some anti-malware protection...it is weak, meaning it does not provide comprehensive protection and cannot prevent, detect and remove all threats at any given time. This is true for most anti-virus solutions. Anti-virus and anti-malware programs each perform different tasks as it relates to computer security and threat detection. Essentially, they look for and remove different types of malicious threats. Therefore, you need both an anti-virus and an effective anti-malware solution for maximum protection.
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