Aphids have two forms. A flying form and and a wingless colony forming form.
Those are wingless colony forming form. All you have to do is run your finger along the flower/ stem to remove them. Keep it up for a few weeks and the predators will eventually find them. Once you have some predators around the aphids will go away for the rest of the year.
Runs just fine on windows. A little slower than on Linux but it works.