First thing first,
Using Android Studio 2.3.3
Problem:
My emulator screen is covering the only partial amount o
I ran into this issue a while ago and have been struggling for it until now. Solution seems to be:
Go to C:\Users\YourUser\AppData\Local\Android\Sdk\emulator
Here, right click on emulator.exe, click Properties and go to Compatibility. Here, check: "Override high DPI scaling behavior. Scaling performed by: APPLICATION".
This should fix the issue on any Windows 10 machine with display scaling activated.