My suggestions:
Windows 10's built in antivirus is already robust, ang i-download mo nalang is an Anti-Malware Software like 𝐌𝐚𝐥𝐰𝐚𝐫𝐞𝐛𝐲𝐭𝐞𝐬. Much better narin yan kaysa sa mag download ka ng ibang Anti-virus that would just hog your memory and install tons of bloatware like *coughs Avast *coughs.
Pero if persistent ka and you don't feel secure with just the default, I recommend Panda Dome. My laptop is between mid-low range and consumes less memory and space compared to other Anti-virus and no bloatware at all. May built in USB Vaccination rin siya like Smadav so di kana mag install ng another AV for flash drives.