Lenovo Thinkpad Acpi Driver

MD5: f841edade3316c8f7a0d38f0f790e4dd

SHA1: 0ed06bb41bf5dcfa97d8ac76f15501f6aeb6f80d

SHA-256: c5c06a20938a0191f3532bbf12a7ba357db570ac4cbdaee7e277aa9e1fb1608c

Installation instruction for ACPI device driver

MD5: 6476fe7dac2697b84abe0b760cb6c931

SHA1: b8bc8dbdd4546c60b450ba4211c55c97334841b7

SHA-256: 5e61041608184f5267c5a93c4c3260f75e33317e8b63e0fe411b36f39e2f2c26

This package installs an updated version of the Microsoft Windows 7 and XP device driver for the ACPI that comes preinstalled in your computer.

This package requires approximately 4MB of space on your hard drive.

This package has been approved for use with the following systems:

ThinkCentre M72e, M78, M82, M92, M92p, M92z

Click the file link to download the file from the Web page.

When prompted, select a drive and directory in which to save the downloaded file.

Follow the instructions provided in the corresponding text file from the above link. It is recommended to print the installation instructions text file so that you can refer to it during the installation.

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

The above symptom may occur on the following systems:

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 recognizes the virtual power controller ACPI/VPC2004.

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

Lenovo ACPI device driver for Windows 7, XP - ThinkCentre, ThinkStation

Hi, new W540 ThinkPad, last unknow device is Microsoft ACPI-konformes System. Download PowerManager and Driver but still unknow. Anyone knows the correct driver.

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