Safe Internet Security screen are very hard to read on these new ultra high resolution screens
I have F-Secure Safe Internet Security on 9 PCs ranging from Win 7 to Win 10 and am for the most part happy with this product. One of these PCs is a Lenovo Yoga 2 Pro which has a 13.3 inch screen with a resolution of 3200 x 1800. Many apps are re-sizable and enlarge items in the screen as you make the window larger. The F-Secure Internet Security windows has the full screen button disabled and does not allow re-sizing by clicking on an edge or corner so everything is very small and extremely hard to read.
Most windows desktop applications initally had this problem, but many such as mozilla fire-fox have adapted and are very useable without using a magnifiying glass. I hope that F-Secure makes the needed changes soon.