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#11
When you buy retail Win7, you can move it to any machine of your choice any time you want, as long as it is on only one machine.
Some confuse MS procedures assuring one-machine rule with restrictions on migration, which they are not.
As there is no deactivation which can be done by the user, the robocall is required when installing on new hardware to deactivate the old hardware signature in MS activation database, then activate the new hardware signature.
Transfer of ownership is not their concern, only one-machine at a time.