@Rahul Vishal Verma (Majorel India Private Limited)
Hi,
To take advantage of E3, you must have the following:
-Windows 10 Pro, version 1607 (Windows 10 Anniversary Update) or later, installed and activated, on the devices to be upgraded
-Azure Active Directory (Azure AD) available for identity management
You could refer to the requirements from this article:
Windows 10 Enterprise E3 in CSP
Therefore, you must first upgrade windows7 to windows10 Pro to be able to meet the conditions.
If a Pro device had been upgraded to Enterprise via E3, then E3 disabled or expired, this device will go back Pro but still activated.
Hope above information can help you.
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