I used an additional display with my laptop and moved the Android emulator there. It seems to remember the location even if the display is not connected anymore.
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For Windows operating system Control panel -> Programs -> Turn window features on or off -> check Telnet client and Telnet server option -> ok
now open your cmd as administrator come to your 'c' drive path using cd\
C:\Users\Harin>cd\
C:\telnet localhost 5554
now it's open new window write
window scale 0.3
here 5554 is your emulator screen number and 0.3 is your screen size, you can change as you want for example 0.2 or 0.4 etc