You can follow below steps to change screen resolution in RDP:
- First click on “Start” button and then search for “Run”.
- You will see a command box where you have to type “mstsc” and then click on OK.
- You will be able to show new RDP connection where you have to click on “Show options” button.
- Now click on “Display” tab and you will find “display configuration” option. You can drag the slider and choose the correct screen resolution as per your need.