1. I could be completely wrong here , but I seem to recall that although I initially used the default AVD the BIOS setting for "Intel Virtualization" was Disabled .... and on installing GenyMotion it was Enabled. (I seem to recall Enabling it for some reason).
You should at least confirm this setting is Enabled .. as it is one of the prime reasons for this message.
On machine start up you should see a brief message .. to enter settings press (DEL) or (F2) or some other key .. this will allow you access to you machines BIOS. (just take care if you have not accessed before) .. there should be instructions what key to press to save changes.
2. Have you confirmed on the GenyMotion site your machine specs are OK .. (OpenGL ?) and read troubleshooting guide.
3 Can You start Oracle VM Virtual Box and see your downloaded GenyMotion device /s
4. Completely uninstall / reinstall Oracle Virtaul Box and GenyMotion.
5. See if have better luck with "BlueStacks Emulator"
6.Post fresh thread requesting help to get default AVD working..
Best of luck.