Windows 10 is the next version of the Windows client operating system, it's planned to be released July 29, 2015.
Microsoft will provide free and easy upgrade to customers running Windows 7 and Windows 8. However, Esko Suite 14 Assembly 5 does not support Windows 10 yet.
It's important that you do not automatically upgrade your workstations to Windows 10.
For more information on when Windows 10 will be supported, please check the Knowledge Base article.