Solved creating a custom resolution 1280x1024 as described here:
http://www.intel.com/support/graphics/sb/CS-029478.htm

Device Manager shows that Intel drivers are installed: Intel HD 2000/3000 for Sandy Bridge 32nm Technology.
Will it work with the drivers for Intel HD 2500 ?

Hi,

After updating my Dell Optilex 3010 from win 7 to win 10, I cannot change the resolution.
The only option I get is 1336x768. My monitor only supports 1280x1024. The image is stretched:
...