You may have to restart for the changes to take effect depending on the driver. I couldnt find this for my exact model but this worked perfectly and has worked on a few others too. The driver I am covering is to rectify the unknown device error that appears under Human Interface Devices in the Device Manager. When you open the driver folder, the list will be populated with a list of the drivers it has found. Here is an easy fix to reinstall the driver on your Sony Vaio Laptop after you have upgraded to Windows 10. Choose "Let me pick from a list of device drivers on my computer" then click the “Have Disk” Button and browse to the folder where you saved your driver for me it was Desktop\55715_Chipset_Intel_Win7_64_Z9301020\WIN7. Right Click on the device And select "Update Driver Software"Ĥ. Open the Device Manager and locate the device you want to force to update. I download the Windows 7 driver from here and then unzipped it with 7-Zip.Ģ. an unknown device with the yellow exclamation in Device Manager the LPC Controller (Code28) APCISNY50014&CBD6309&0 which.
I have since found a solution to this problem and until Sony offer a different solution this is the only way I have found to solve this.ġ.You are going to need to download the drivers. After spending 2 day backing up everything, resetting my laptop to factory condition and then reinstalling everything all the way back to Windows 8.1 I found that this still didn’t solve the problem. I contacted Sony who advised me to do a clean install and follow all instructions on their website, so this is what I proceeded to do. I have a Sony Vaio running Windows 8.1 64bit and after updating I found that I had an unknown device which was "Intel(R) HM76 Express Chipset LPC Controller - 1E59)" and it had a yellow exclamation mark next to it in the Device Manager.
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