Got a windows security alert that there was a severe threat on my pc. When I looked at it, it was a file with trojan in the title. Very spooky. When I let windows security run the necessary actions, it did another scan and then three such files showed up. I told windows security to delete them, ran another scan twice and it hasn’t found any new threat. Am I good or should I take further action?

I downloaded something I have used in the past. A file recovery program called testdisk. I have used it before without issues, now it suddenly got me this issue. I deleted that, and any files I recovered with it, and now there aren’t any new threats.