How to manage Windows 10 notification and upgrade options

The Windows 10 upgrade is automatically blocked (that is, no further action is required) on computers or other devices in the following scenarios:

• The computer or device is joined to a domain.
• The computer is managed through MDM.
• The computer is running any of the following systems that are excluded from this reservation offer:
  • Windows 8.1 Enterprise or Windows 8 Enterprise
  • Windows RT 8.1 or Windows RT
  • Windows Embedded 8.1 Pro
  • Windows Embedded 8 Standard
  • Windows Embedded 8.1 Industry or Windows Embedded 8 Industry
  • Windows 7 Enterprise
  • Windows 7 for Embedded Systems
  • Windows Embedded Standard 7
  • Windows Embedded POSReady 7

for other scenario’s where you need to block the notification check this KB3080351