Control Panel > Appearance & Themes > Display
Note: If you set it too high your monitor might not be able to handle it... wait 15 seconds and it will go back to the previous setting and you can try again.
Also, if the slider won't let you go above 640x480 then you will have to reinstall your graphics drivers.
Note: If you set it too high your monitor might not be able to handle it... wait 15 seconds and it will go back to the previous setting and you can try again.
Also, if the slider won't let you go above 640x480 then you will have to reinstall your graphics drivers.