best antivirus for win7

what is best antivirus for win7 low end pc

Microsoft Security Essentials 4.18.209.0 is what I use.
It's light-weight and very user-friendly.
Although the app version is no longer updated, it still receives definition updates.

Another vote for MSE. I find that manually downloading the definitions from https://www.microsoft.com/en-us/wdsi/defenderupdates is quicker, especially if I haven't updated MSE for awhile. You just run the downloaded .exe file. It will look like nothing is happening, but after awhile MSE will show that it has been updated.

It's reported that MSE released 2016.
in my download from MSFT, sometimes, 11 MB. sometimes, 14 MB. never know its difference.

This question has been asked a number of times. The old Avast free anti-virus from Archive.org will install on Windows 7, then you updated both the software and the definitions. It stays free, and stops nagging after a week or so, when it realises you're not going to buy it. Major Geeks have an installation guide.

Thanks to clarity. Good to know.

sithika said:

what is best antivirus for win7 low end pc

flavallee said:

Microsoft Security Essentials 4.18.209.0 is what I use.
It's light-weight and very user-friendly.
Although the app version is no longer updated, it still receives definition updates.

The 'app' part of it is just the GUI (the Antimalware Client). MSE still gets the latest updates for the scan engine and the AV definitions, exactly the same ones as Windows Security in Windows 11 uses.