总结一下:

Install and reinstall HAXM 7.5.6 (only available version) under 'Android SDK' settings. Try downloading it manually, even other versions (they don't work with Android SDK), installing it from the Android/Sdk folder, etc. sc query intelhaxm in cmd should show if it is running correctly. Virtualization is enabled in your BIOS and has been tested Made sure the PATH variables are correct (ANDROID_HOME / ANDROID_SDK_ROOT) but NOT (ANDROID_SDK_HOME) to the folder in your settings per Here. Otherwise, you will see EVENTS on the Android Studio splash screen. Try unchecking / rechecking Launch in a tool window in Emulator settings (and even Enable Device Frame in AVD settings) Try rebuilding in several different combinations of android, different phones, etc (but with same levels and packages ... 30 for example) Try Rebooting in several different configurations Make sure all SDK Tools are up-to-date, and even try a fresh install of Android Studio. However, tried removing all of them, and adding them back. Check your space, try to have 25GB maybe or more free Check for Virtual Box, Antivirus Software, etc. Open Android Studio with Administrator privileges

运行在双显示器/坞站上?

A)在不插任何插头的情况下运行模拟器，然后插回显示器!(我知道很奇怪)……或者更好的是…… B)创建一个新的硬件配置文件，它将使您能够将图形:自动更改为软件。

以我为例，在我尝试了较低版本的Pixel和Android后，问题得到了解决。

对我来说，这是我电脑剩余空间的问题，删除不必要的文件解决了这个问题。原因是不同的情况下，你应该看到事件选项卡，其中详细的事件日志显示。

总结一下:

Install and reinstall HAXM 7.5.6 (only available version) under 'Android SDK' settings. Try downloading it manually, even other versions (they don't work with Android SDK), installing it from the Android/Sdk folder, etc. sc query intelhaxm in cmd should show if it is running correctly. Virtualization is enabled in your BIOS and has been tested Made sure the PATH variables are correct (ANDROID_HOME / ANDROID_SDK_ROOT) but NOT (ANDROID_SDK_HOME) to the folder in your settings per Here. Otherwise, you will see EVENTS on the Android Studio splash screen. Try unchecking / rechecking Launch in a tool window in Emulator settings (and even Enable Device Frame in AVD settings) Try rebuilding in several different combinations of android, different phones, etc (but with same levels and packages ... 30 for example) Try Rebooting in several different configurations Make sure all SDK Tools are up-to-date, and even try a fresh install of Android Studio. However, tried removing all of them, and adding them back. Check your space, try to have 25GB maybe or more free Check for Virtual Box, Antivirus Software, etc. Open Android Studio with Administrator privileges

运行在双显示器/坞站上?

A)在不插任何插头的情况下运行模拟器，然后插回显示器!(我知道很奇怪)……或者更好的是…… B)创建一个新的硬件配置文件，它将使您能够将图形:自动更改为软件。

解决此错误的最佳5个选项，avd的模拟器进程被杀死

given option are checkpoints, check it out one by one.
Error Solution Option 1
Possiblity:
HAXM may not installed in System
HAXM - Hardware Accelerated Execution Manager
Solution:
SDK Manager > Check for HAXM installer
install it, if HAXM not installed
=======================================

Error Solution Option 2
Possiblity : 
Low disk size to load Emulator
Latest AVD with API level 30+ required approx 7 GB disk space
Solution:
Free space from disk where AVD is located

=======================================
Error Solution Option 3
Possiblity :
Configured AVD API may not available in SDK Manager
As an Example:
if Emulator with API level 30, same package of API 30 should be installed in SDK

Solution:
Install same version of SDK Platfrom from SDK manager,
as same as Emulator – AVD API

=======================================
Error Solution Option 4
Possiblity :
Configuration error in Old AVD 

Solution:
Recreate AVD with latest available update
Help > check for update, if component Android Emulator Update is available, install it
delete older AVD and create Fresh AVD

=======================================
Error Solution Option 5
Possiblity :
Embedded AVD not properly load with available image

Solution:
Launch AVD as independent component,
After success close it and lauch within Android Studio
Emulator inside Android Studio
=======================================

before apply all of above once restart you System, try it.

有关视频支持的更多帮助，请参阅如何修复AVD被杀死 我想它可能对你有帮助。

我有同样的问题，问题是没有足够的空间在我的磁盘驱动器..你可以在“事件日志”层中看到关于你具体情况的详细信息，这一层通常位于Android studio的底部，它是我的输出日志:

"02:45 PM模拟器:模拟器:错误:没有足够的空间来创建用户数据分区。可用:3310.363281 MB /home/user/.android/avd/my_Nexus_5X_API_27。avd，需要7372.80万MB。

我只有7gb的空闲空间，所以只要在我的光盘里删除一些GB就可以了。