Hyper-V Default Switch Missing After Installation in Windows 10

Question

I am currently experiencing an issue where the Default Switch in Hyper-V is missing from my system. I have tried several troubleshooting steps, but the problem persists. Here’s a summary of the actions I’ve already taken:

Troubleshooting Steps Taken:

1. Uninstalled and Reinstalled Hyper-V twice via Windows Features.
2. System File Checker (SFC) run using the command: C:\Windows\system32>sfc /scannow Beginning system scan. This process will take some time. Beginning verification phase of system scan. Verification 100% complete. Windows Resource Protection found corrupt files and successfully repaired them. For online repairs, details are included in the CBS log file located at windir\Logs\CBS\CBS.log. For example C:\Windows\Logs\CBS\CBS.log. For offline repairs, details are included in the log file provided by the /OFFLOGFILE flag.
3. Deployment Image Servicing and Management (DISM) commands:
   1. cmd: DISM /Online /Cleanup-Image /CheckHealth result: C:\Windows\system32>DISM /Online /Cleanup-Image /CheckHealth Deployment Image Servicing and Management tool Version: 10.0.19041.3636 Image Version: 10.0.19045.5679 No component store corruption detected. The operation completed successfully. C:\Windows\system32>
   2. cmd: DISM /Online /Cleanup-Image /ScanHealth result: C:\Windows\system32>DISM /Online /Cleanup-Image /ScanHealth Deployment Image Servicing and Management tool Version: 10.0.19041.3636 Image Version: 10.0.19045.5679 [==========================100.0%==========================] No component store corruption detected. The operation completed successfully. C:\Windows\system32>
   3. cmd: DISM /Online /Cleanup-Image /RestoreHealth result: C:\Windows\system32>DISM /Online /Cleanup-Image /RestoreHealth Deployment Image Servicing and Management tool Version: 10.0.19041.3636 Image Version: 10.0.19045.5679 [==========================100.0%==========================] The restore operation completed successfully. The operation completed successfully. C:\Windows\system32>
4. PS C:\Windows\system32> Get-Service -DisplayName "Hyper-V" | Select-Object DisplayName, Status DisplayName Status

---

Hyper-V Host Compute Service Running

Hyper-V Guest Service Interface Stopped

Hyper-V Heartbeat Service Stopped

Hyper-V Data Exchange Service Stopped

Hyper-V Remote Desktop Virtualization Service Stopped

Hyper-V Guest Shutdown Service Stopped

Hyper-V Time Synchronization Service Stopped

Hyper-V PowerShell Direct Service Stopped

Hyper-V Volume Shadow Copy Requestor Stopped

Hyper-V Virtual Machine Management Running

PS C:\Windows\system32>

1. PS C:\Windows\system32> Get-Service vmms Status Name DisplayName

---

Running vmms Hyper-V Virtual Machine Management

1. C:\Windows\system32>wmic nic get AdapterType, Name, Installed, MACAddress, PowerManagementSupported, Speed AdapterType Installed MACAddress Name PowerManagementSupported Speed

               TRUE                          Microsoft Kernel Debug Network Adapter          FALSE                     
   

   Ethernet 802.3 TRUE E0:42:AS:ss:sF:C4 Killer E2600 Gigabit Ethernet Controller FALSE 100000000

               TRUE                          Bluetooth Device (Personal Area Network)        FALSE                     
   

   Ethernet 802.3 TRUE F4:24:23:y4:3c:2z Realtek 8822CE Wireless LAN 802.11ac PCI-E NIC FALSE 9223372036854775807 Ethernet 802.3 TRUE F4:24:23:y4:3c:2z Microsoft Wi-Fi Direct Virtual Adapter FALSE 9223372036854775807 Ethernet 802.3 TRUE E0:42:AS:ss:sF:C4 Microsoft Wi-Fi Direct Virtual Adapter #2 FALSE 9223372036854775807

               TRUE                          WAN Miniport (SSTP)                             FALSE                     
   
               TRUE                          WAN Miniport (IKEv2)                            FALSE                     
   
               TRUE                          WAN Miniport (L2TP)                             FALSE                     
   
               TRUE                          WAN Miniport (PPTP)                             FALSE                     
   
               TRUE                          WAN Miniport (PPPOE)                            FALSE                     
   

   Ethernet 802.3 TRUE EC:42:AS:ss:sF:C4 WAN Miniport (IP) FALSE Ethernet 802.3 TRUE F4:24:23:y4:3c:2z WAN Miniport (IPv6) FALSE Ethernet 802.3 TRUE F0:24:23:y4:3c:2z WAN Miniport (Network Monitor) FALSE

               TRUE                          RAS Async Adapter                               FALSE                     
   
               TRUE                          SAMSUNG Mobile USB Remote NDIS Network Device   FALSE                     
   

   C:\Windows\system32>
2. Windows update done.

screenshot 1:

screenshot 2:

screenshot 3:

Note: I tried to change MAC for physical interface Ethernet adapter and Wi-Fi adapter using Registry Editor but I can't change so installed "Technitium MAC Address Changer v6" and changed the MAC address successfully.

Answer 1

Hello,

Thank you for posting in Q&A forum.

1.Open "Window Security"

2.Open "App & Browser control"

3.Click "Exploit protection settings" at the bottom

4.Switch to "Program settings" tab

5.Locate "C:\WINDOWS\System32\vmcompute.exe" in the list and expand it

6.Click "Edit"

7.Scroll down to "Code flow guard (CFG)" and uncheck "Override system settings"

Finally, open PowerShell as an administrator and run the following command：

net start vmcompute

I hope the information above is helpful.

Best regards

Zunhui

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