Failed to install HAXM during Android Studio installation

Ignore this error on Android Studio installation and go to the Intel website, download the HAXM installer that they provide (instead of using the one downloaded through Android Studio).

Here's the link: https://software.intel.com/en-us/android/articles/intel-hardware-accelerated-execution-manager

and the direct link: https://github.com/intel/haxm/releases/tag/v7.6.1

As @Marcin Koziński said in Intel HAXM requires only to run the Emulator faster. Still, if you want to install HAXM, follow the steps.

1. Restart your PC and go to BIOS
2. In advanced option Enable Virtualization and save exit
3. After Windows restarted go to the SDK path of your Android Studio
4. Find this path \sdk\extras\intel\Hardware_Accelerated_Execution_Manager
5. Run intelhaxm-android.exe executable

Now, this would install HAXM software in your system. Note that your system must have Intel CPU, not AMD

Try this :

Go to Control Panel → Program and Feature. Click on Turn Window Features on and off. Uncheck Hyper-V option and restart your system.

Now you should install HAXM with no error