I install the latest version of Android Studio Android Studio 4.0.1.then after i open Android studio and create sample project.after that i open AVD manager and "create virtual device",then after i download Android 10.0+ API 30 level emulator. Issue is AVD not start.please check Images
PC configuration:
Window 7 Professional,Service Pack 1, 8GB RAM,64-bit,intel core i3,Asus
I made VT-x enabled and saved it many times,but AVD did not start. I changed lithium battery on MB,so now AVD works.
I think if lithium battery on MB is low,BIOS will not work properly.