Once or twice a day, the launch of Paint.net takes forever, maybe half a minute or even more. I found this topic and adding Paint.Net folder to Defender exclusions seems to fixed the problem. But why Defender thinks theres something suspicious in Paint.Net? 🤔 I dont use any plugins, any modifications, only clean portable app without any tweaks. I tried deleting whole app, whole settings in AppData, but with no effect. There wasnt such problem with 4.3 🤔