After installing Windows 10 on my laptop, I can't find my Yo-Safe anymore. Is there any way to restore it?
This happens because Windows 10 is not supported and Yo-Safe doesn't know how to operate. This application comes pre-installed on various Acer laptops. You will have to wait until Acer releases a new version of MyWinLocker before you can actually use it again. I see that there is no possibility of downloading an update for the application and the best way to get the answer about this issue is through the contact option. Acer allows you to chat with a technician using the chat link posted on the Support page: http://us.acer.com/ac/en/US/content/service-contact
Access the chat link and get in touch with actual developers.