You cannot look up your Activation ID and Key from the Registry unless you have a previously licensed 1.x version installed. Fresh installs now encrypt that data so make very sure you have your ID and Key before you proceed. Previous 1.x PRO versions did store the ID and Key in the following locations of the Registry but a clean fresh install of version 2.0 will not store it in the Registry.
Location for Windows x86 32-Bit
HKEY_LOCAL_MACHINE\SOFTWARE\Malwarebytes' Anti-Malware
Location for Windows x64 64-Bit
HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Malwarebytes' Anti-Malware
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