Amperage is a console Windows app designed to help you enable Recall on devices that aren't officially supported.
At the moment, Amperage can only enable recall if your machine has an Arm64 CPU / SoC. That is, any Qualcomm Snapdragon, Microsoft SQ, or Ampere chipset.
Make sure that you're running Windows 11 version 24H2 build 26100.712 before continuing. Older builds, as well as newer betas (builds 26200-26217) do not include the necessary OS level components for Recall.
Most x86_64 users will have to wait until Microsoft publishes AI Components for their platform. However, if you're feeling particularly adventurous you can try Emulating Arm64 Windows on your x86_64 Windows PC
26100.712 is also available on Azure ARM VMs by using a 24H2 image (currently 26100.560) and installing KB5037850.