how to run windows sandbox

Steps for running Windows Sandbox for Testing Purposes 

A.check windows version
   Search Bar: CMD
     Microsoft Windows [Version 10.0.18362.239]

B.check bios setup
   Reboot
   Press Del

   Asus UEFI BIOS Utility - Advanced Mode

   Boot \ CSM (Compatibility Support Module)
   Launch CSM:   Enabled
   Boot Device:  UEFI and Legacy OpROM
   Boot from Network Devices: Ignore
   Boot from Storage Devices: Both, Legacy OpROM First

   -----

   Advanced \ CPU Configuration
   ...
   Hyper-threading: Enabled
   ...
   Intel Virtualization Technology: Enabled
   ...

   -----
   Save and Reset

C.check windows features
   Search Bar: Turn Windows features on or off
      Windows Sandbox      V

D.reboot
   Search Bar: Windows Sandbox

E.check NAT networking
   Search Bar: CMD

  C:\Users\WDAGUtilityAccount> ipconfig /all

  Windows IP Configuration

   Host Name . . . . . . . . . . . . : 60347f14-fb9f-4411-b680-c4514197c248
   Primary Dns Suffix  . . . . . . . :
   Node Type . . . . . . . . . . . . : Mixed
   IP Routing Enabled. . . . . . . . : No
   WINS Proxy Enabled. . . . . . . . : No
   DNS Suffix Search List. . . . . . : mshome.net

  Ethernet adapter 乙太網路:

   Connection-specific DNS Suffix  . : mshome.net
   Description . . . . . . . . . . . : Microsoft Hyper-V Network Adapter
   Physical Address. . . . . . . . . : C8-27-CC-C2-37-5A
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes
   Link-local IPv6 Address . . . . . : fe80::8cd6:5a39:ffd6:d73a%6(Preferred)
   IPv4 Address. . . . . . . . . . . : 192.168.142.78(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.255.240
   Lease Obtained. . . . . . . . . . : Tuesday, July 16, 2019 1:15:55 PM
   Lease Expires . . . . . . . . . . : Wednesday, July 17, 2019 3:37:37 PM
   Default Gateway . . . . . . . . . : 192.168.142.65
   DHCP Server . . . . . . . . . . . : 192.168.142.65
   DHCPv6 IAID . . . . . . . . . . . : 113780684
   DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-24-BF-15-E3-C8-27-CC-C2-37-5A
   DNS Servers . . . . . . . . . . . : 192.168.142.65
   NetBIOS over Tcpip. . . . . . . . : Enabled