Which Antiviruses are Known for a Fact to be Working on XP SP3 as of 2019? in Windows XP Posted July 8, 2019 On 9/29/2017 at 7:19 PM, MikeyV said: Clamwin + Clam Sentinel gets you real time scanning, and its still lightweight. SSE-PC only Clamwin working. Also Clam Sentinel(life-guard) but is blocking a lot of false-positives which is annoying above all since one has to rule them out by putting on whitelist. e.g. irfanview-plugins. so i stopped using Sentinel. And: TFC(temp file cleaner) also false positive. will tell them since is very important daily scanner.