I purchased an Inspiron 3646 with Windows 8.1 and then purchased Windows 8.1 Pro from Dell and I am attempting to do the install. When I run the setup from the DVD it never prompts for the Key and when the install is complete it is still the 8.1 version under the original OEM Key.
I also tried the Add Features option and enter the 8.1 Pro Key and it gives a message that this key won't work.
The package label reads WIN PRO 8.1 X64 ENGLISH 1PK DSP OEI DVD
UPDATE MEDIA INCLUDED
Any help would be appreciated.