1.*Install and launch Morrowind at least once,set all settings to desired levels
2.*Open Regedit
3.*Find this Entry in the registry
Computer\HKEY_CURRENT_USER\Software\Classes\VirtualStore\MACHINE\SOFTWARE\WOW6432Node\Bethesda Softworks\Morrowind
4.*Find "Screen Height" and "Screen Width"
5.*Change the circle-tick from "Hexadecimal" to "Decimal" for both the Screen Width and Height
*Set Height Decimal to 1080
*Set Width Decimal to 1920
6.*Don't modify any game settings after that
Enjoy
