I believe it's because I've updated my SDK and tools, without updating HAXM. Unfortunately I don't have admin rights on this machine and need help figuring out how to get the emulator working without updating HAXM. Any ideas? Downgrading the SDK? Maybe getting the new HAXM is the only option to progress forward?
9:55 AM Emulator: Warning: requested RAM 1024M too high for your system. Reducing to maximum supported size 0M
9:55 AM Emulator: Process finished with exit code 0
Reinstalled HAXM and back in business. I think some configuration was corrupt when I tried to update HAXM and then couldn't complete from the SDK manager since I didn't have admin rights. Reinstalling the old version of HAXM seems to have got things working again.