To do this solution
1.
Windows 8 Start Screen,
just start type ‘’ regedit’’ then enter
2.
Hit the Ctrl+F keys
3.
Type in search box
‘’Display1_DownScalingSupported’’
4.
Once your computer finds
that entry,
5.
double-click it n Change
that number 0 to 1 and then click OK to
close the box.
6.
Again hit F3 to search for the ''
Display1_DownScalingSupported''
and change those form 0 to 1
7.
When u done, exit the
regedit program.
8. Reboot your computer
9.
Adjust your screen resolution 1024 x 768 n go ahead
I