I am running on Windows 8.1 x64, developing Android apps using ADT Bundle. Previously (before updating the Android SDK Tools) the AVD was working very correctly and after th
I've run into the same problem here and in my research I was able to find a documentation on the android developer site that helped me out with this.
Start the Android SDK Manager, select Extras and then select Intel Hardware Accelerated Execution Manager.
After the download completes, run [sdk]/extras/intel/Hardware_Accelerated_Execution_Manager/IntelHAXM.exe
Follow the on-screen instructions to complete installation.
After installation completes, confirm that the virtualization driver is operating correctly by opening a command prompt window and running the following command:
sc query intelhaxm
You should see:
SERVICE_NAME: intelhaxm
...
STATE : 4 RUNNING
...
Refer to this documentation here: Using the Emulator - Configuring VM Acceleration on Windows
Hope it helps.