I downloaded the latest version of Parallels 15 along with updating my windows 8.1 to windows 10 and I am having issues. I am having the exact same issues described in this bulletin: https://kb.parallels.com/en/124817 The resolution of the screen is huge, the screen have black bars on either side, and I can't open the windows menu. I downloaded the latest version of Parallels 15, it says it's the most up to date. I can't find the "installation" tab that is outlined in the manual setup. Any help is greatly appreciated.