Philip_Yip
5 Iridium

Re: 619-ALWX : Windows 7 Professional (64Bit Windows 10 Lice

Windows 10 Pro has Downgrade Rights to Windows 7 Pro. The ACPI Tables in the UEFI BIOS contain a MSDM for Windows 10 Pro (with 25 digit unique product key) and a SLIC 2.1 for Windows 7 OEM SLP. More details here:

https://dellwindowsreinstallationguide.com/oem-activation-mechanisms-and-oem-downgrade-rights/

Dr Philip Yip
Tech Enthusiast and Author of the Unofficial Dell Windows Reinstallation Guide

Windows FAQs and OEM Downloads


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