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      Unknown Device in the device manager, code is ACPI/VPC2004


      Windows does not recognize the device in the device manager, the device has a code ("Device ID") ACPI/VPC2004.

      Affected Brands

      All Ideapad and Essentials laptops


      Download and run Energy/power Management or OneKey Optimizer from Lenovo support website with the proper Operating System version.
      This will install the chipset INF files so that Windows will properly recognize the virtual power controller ACPI/VPC2004.

      Related Article


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      • Alias ID: IN20100524-007
      • Document ID: HT071645
      • Last Updated :05 Oct 2016
      • © 2016 Lenovo