I use Parallels 13.2 on High Sierra and i have Windows 10 on bootcamp. Yesterday i updated windows 10 to the last version 1709. Now when i click on start menu button , nothing appears, the same thing happens when I click on the button to search. but other than that, windows 10 seems slower and not working properly and this happens only when I run parallels. in fact if I run windows 10 directly, I do not have any kind of problem, everything works properly. I read some solution on the forum, like moving the file ctfmon to the folder startup, but did not work Thanks in advance.