03-30-2016 02:46 PM - last edited on 04-01-2016 08:51 AM by Majestic
I download the :
Advanced Configuration and Power Management Interface (ACPI) Driver, from the Lenovo website:
The link for the driver ( for Lenovo y700-15ISK) :
I download, give permission to run, then nothing happens; no installation wizard, nothing. This is the only driver I haven't been able to update, and it is the one that is causing me serious problems with audio latency, as Latencymon v 6.50 tells me. I get crackling sound from speakers, but when I disable the ACPI driver, the crackling goes away.
The problem is that if I disable the ACPI driver, I am no longer able to see my battery status. So it is important that I update this driver. However, I don't know how it is possible that the driver provided by Lenovo does absolutely nothing at all.
Mod Edit: Corrected the text format so message displayed correctly
Solved! Go to Solution.
04-11-2016 12:41 AM
The fix for this is to go to safe mode (on windows 10) :
Settings-> Update & Security-> Recovery : press restart now -> After your PC restarts to the Choose an option screen, select Troubleshoot > Advanced options >Startup Settings > Restart-> After your PC restarts, you'll see a list of options. Select 4 or F4 to start your PC in Safe Mode.
then in safe mode go to device manager ->System devices
right click on Lenovo ACPI-Compliant Virtual Power Controller -> Uninstall
Double click on the ACPI Driver you downloaded. this should fix the problem.