Here i added several antivirus that i think best for your laptop. Since my part time job is repairing notebook(even i don't have one), i always been ask which antivirus work best, well i don't really know which one because each antivirus detection is different.
##Portable antivirus ##--->flash drive protection
I like this one because it is sensitive to script virus like len.js and autorun.inf, but last week i notice that bit defender and avg works well against the same threat, most of this virus disable to view hidden files and prevent pendrive to open normally.