I just fixed my Samsung 500T XE500T1C-A04US.
What I did was
1. Open Device Manager
2. Under Display adapters. Right click on Intel(R) Graphics Media Accelerator
3. Click on Update Driver Software...
4. Select update from internet
I also had the problem where the display adapter would crash when resuming from standby mode. After doing the above it does not crash anymore.
The driver version I had before was 9.14.3.1170. Now it is 9.14.3.1177.
I do not know why it would not show up via windows update but worked when using the device manager update search.