check systweak official website. Unfortunately lods, hindi sya free, pero may free trial sya. Here the top 10 list for lightweight antivirus 2021. Better choose the free on the list and don't use cr-ack versions, kasi regularly inu-update and virus definitions nga mga to.
1. Systweak Antivirus
2. AVG Free Antivirus - di ko to recommended
3. Avast Free Antivirus
4. 360 Total Security
5. Avira - Eto gamit ko lods kasi free and simple interface
6. Bitdefender
7. Kaspersky Antivirus
8. Panda Security
9. Adaware Antivirus Free
10. Comodo Free Antivirus
11. ESET Internet Security - yan ang gamit ko sa laptop ko na 4gb ram lang, so far so good naman. magaan din sya lods. hanap kanarin dito ng activation key
for me windows defender + malwarebytes, smooth sya para sa pc ko, di ko lang sure kung sa mga low specs pero kung sa mid oks naman sya di sya gaano mabigat and maganda rin sya