Whenever I open the Windows partition on my iMac, it starts attempting to install the Windows 10 upgrade. I already have Windows 10 Pro installed, so the upgrade is irrelevant. How can I turn off this behavior or at least get the Parallels/Windows VM to recognize that Windows 10 Pro is already there?
Windows Update, a service offered by Microsoft, provides updates for Windows components. It can be replaced with Microsoft Update, an expanded version of the service which provides for other Microsoft software as well, such as Microsoft Office, Windows Live Essentials, and Microsoft Expression Studio. This article from Microsoft should help you
