07-09-2009 02:59 PM
Hello anyone & everyone,
I have a problem with an unknown device found in the Device Manager under "other devices" it says the following:
Location: on Microsoft ACPI-Compliant System
Device Status: The drivers for this device are not installed. (Code 28)
To reinstall the drivers for this device, click Reinstall Driver.
When I try and find the driver it can't be found.
Under the "Details" Tab... it has Hardware Ids as: ACPI/ATK0101 and *ATK0101
Can anyone help with this?? Thank you SO much for your time!!
09-07-2010 11:32 AM
I have this exact same problem-it occurred all of the sudden one morning when I tried to log on.
I believe the "Unknown Device" (one of the "System Devices" in the Device Manager) is the ATK0101 ACPI Utility and uses a driver called A0101X32.sys which seems to be nowhere on my computer (I have no idea where it went or why it vanished). However, I cannot manage to find this driver on the website and download/install it, and what's more, when I try to do so, the "Update Driver" dialog boxes informs me that the file I must find is one with the extension "*.inf" which doesn't make any sense whatsoever.
Has an answer to this problem been found?
09-07-2010 11:49 AM
Hi AlcazarDave, and welcome to the Lenovo User Community!
ACPI is power management. Try reinstalling the Power Management driver:
Hope this helps!
09-11-2010 05:23 AM
Thanks for the response. I used the link you left in your post, but the file you listed (MIGR-70413) does not appear to be available anymore. I downloaded the file listed as "Power Management driver for Windows 7, Vista, XP - ThinkPad SL300, SL400, SL400c, SL500 and SL500c" which was named 6aku05ww.exe
I hope this is the right file?