04-22-2016 01:18 PM
I have the same issue on my Lenovo Z51. Did you find an answer that works? I also tried the solutions that were directed to you, and neither of them worked. I tried to enable in BIOS the Intel smart connect technology, but I did't find it.
11-10-2016 04:13 PM
ACPI\INT33A3 - That device isn't smart connect. You won't find that deviceID in the INF file.
I have a different laptop with an Intel RealSense F200 webcam, which has that DeviceID in the drivers.
The drivers are hard to find, they're buried in the SDK, found here:
You would see that deviceid in this driver: IntelDFUACPI.inf
11-14-2016 12:34 PM
You're right, the drivers only support Windows 8.1 and above. It installs easily in a new OS, but not Win7. Sorry I didn't notice.
There are no Win7 drivers available from Intel - and maybe there never will be. But I did make that driver install in Win7. You have to get out your admin hammer and force it to accept the "unsigned" driver and then it will comply.
The driver actually is signed, just not for Win7.
01-04-2017 10:59 AM
You still got the problem to solve that issue?
Here's fix for that!
For ACPI\INT33A3 is: OneKey Optimizer
If someone got problem with "eXtensible USB Driver ( like Me.. )
Intel® USB 3.0 eXtensible Host Controller Driver
"Geek's" from lenovo..