![]() Hello, i have a lenovo b470, in my computer management, i can see that i have an unknown device with the value of acpivpc2004. Power management, how to download, 47 est.Ī quick google gives me a 95/100 rating by 97 users. ![]() Acpivpc2004 unknown device third hit was this at another lenovo forum. ![]() Not all heroes wear capes, some wear kevlar! Lenovo notebook, unknown device driver for acpi\vpc or acpi\ven vpc
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