When I download that ZIP you linked to and go to manually install it through device manager the message is: "The best driver software is already installed, Windows has determined your device is up to date."
The pre-existing driver from device manager after the latest updates is:
Version: 20.19.15.4326
Date 11/20/15
The downloaded version linked above (from Intel listing) is:
DRIVER VERSION: 15.40.14.64.4352 & 15.40.14.32.4352
DATE: December 22, 2015
Follow these instructions:
Click "Start", right-click "Computer", and click "Properties".
2. Click "Device Manager" on the left.
3. In the "User Account Control" window, click "Yes".
IF UPDATING DRIVER GO TO STEP 5
4. Double-click "Video Controller (VGA Compatible)" if present under
"Other Devices". (Go to step 6) - (Only if you uninstalled the driver previously and it didn't reinstall).
5. Expand "Display adapters" and double-click the graphics controller.
6. In the "Driver" tab, click "Update Driver".
7. Click "Browse my computer for driver software".
8. Click "Let me pick from a list of device drivers on my computer".
9. Click "Have Disk..." and click "Browse".
10. Browse to the directory where you unzipped the file you
downloaded, click the "Graphics" folder, and select the
.INF file. Click "Open".
11. Click "OK" and click "Next". The operating system will install
the driver.
12. Click "Close" and click "Yes" to reboot. The driver should now
be loaded.