What if Android emulator fails to start

Today I launched the AVD manager, selected my Android virtual device, clicked onĀ  “Start” and… nothing !

OK, why don’t you want to start, you son of your father ?

Launching it from the command line showed the error message:

C:\Program Files (x86)\Android\android-sdk-r16\tools>emulator.exe -avd AVD_for_403

C:\Program Files (x86)\Android\android-sdk-r16\tools>Failed to allocate memory: 8

This application has requested the Runtime to terminate it in an unusual way.
Please contact the application's support team for more information.

I had previously increased the virtual device memory from 256 to 1024, but for some reason the emulator was not happy with it. Lowering it to 512 solved my issue:

What I don’t understand is that I have 16GB of RAM on my laptop… if someone knows why I cannot allocate 1025MB , I’m interested !