ACPI\VEN_LEN&DEV_4001 it’s a Lenovo ACPI. For the correct operation of your chipset from Intel on Lenovo laptop download the driver for Lenovo ACPI and install it then reboot. The driver works on Windows 10 x64, Windows 8.1 x64. You can download the driver from the official website of Lenovo at the link below or from our server. This device is also known as ACPI\LEN4001, ACPI\VEN_LEN&DEV_4001, *LEN4001.
DOWNLOAD LINKS: Here are the newest divers. Ignore parameters such as rev (0100, 0200, 0300, 0400), subsys (cc, pid). Look only at ven and dev device id.
ACPI\VEN_LEN&DEV_4001 Driver's for Windows 10 11 8.1 7 and HowTo
I am a service engineer with 15 years of experience and I am constantly looking for drivers for various hardware for work. I’m tired of using bad sites and I created a good one – you are on it. Enjoy using the site. Unfortunately, I have never held 70% of the hardware for which I publish drivers in my hands, and therefore some drivers may not work. Humble yourself.
Identify the device by ven and dev device id. Download driver and install it. Also note that rev (0100, 0200, 0300, 0400) and subsys (cc, pid) are advanced options, don't rely on them! Drivers are designed for windows 10 x64 but are also found for windows 7, 8.1 x64. To learn how to install drivers in Windows, watch the video on the driver page and follow the appropriate steps. All files on the site are checked by antivirus and there is an example of their installation on YouTube. When searching for a driver, ignore parameters such as - cc 0c03, cc 0300, cc 0b4000, subsys 06861025, cc 0302, cc 0c8000, cc 030000, rev 04, ACPI, subsys, rev 05, rev 06, hdaudio func, rev 0e, intelaudio dsp, rev 09. Use only ven and dev device id.
Work on my acpi\len&dev_4001 device. I did not see this device, but after I downloaded and installed the driver, the yellow exclamation mark disappeared and the PC works fine.
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