Maschine 2 or 3 is not listed among the products(registered or unregistered) under the link:
https://www.native-instruments.com/en/my-account/my-products-serials-downloads/
Here are some image snapshots from the website:
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I tried to add the serial several times:
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Here is what I did to debug the issue: Sharing so others don't have to:
I am on Windows 10 (even though it is listed under supported OS).
Ran into an old post: https://support.native-instruments.com/hc/en-us/articles/360000564125-Maschine-2-Legacy-Installers-for-Older-Operating-Systems
— Downloaded legacy Maschine 2, my product finally booted up but the software requires activation, when I press activate now, it redirects to Bloatware Access again and fails to activate.
— Downloaded legacy Bloatware Access and tried all the steps to no avail.