Hello everyone, I'm using Parallels desktop for Windows since version 12. Currently I'm using the latest version of release 15 since Now.2019 almost every day. When I started this morning Parallels to open the well-known IrfanView program (to edit photos/scans) in my Windows10 x64 VM it got stuck (not responding). I was waiting for about two minutes before I tried to close the program, which was not possible. Next I tried to open the Task Manager to kill the process, but the VM was not responding. As a last possibility I saw to close the Parallels Desktop and to start Parallels Desktop once again. When I did I recognised that Parallels desktop had not shutdown, but was only gone to sleep modus. When I started it up I just came into the same situation with the open IrfanView windows saying 'application not responding'. I closed Parallels desktop once again. After I did that and I try to open Parallels desktop I just get a black screen. What can I do ? Any help appreciated as I need the VM of Windows10 x64 for my work. Thanks in advance to everyone trying to help me.