HI ,

ON Windows 8.1 pro 64 bit I am unable to create and Switch External  or Internal  I get the following error. System cannot find the specified file. Then i get some GUID which were created.

Error Message

Failed to connect Ethernet switch port (switch name = '1B1F3044-B4C7-4343-BA88-A4FE046234D6', port name = 'D6C26CDC-A362-417D-AFAB-E2ED2C76DF4C', adapter GUID = '{DB1DEFDB-CA20-43A7-BB38-E78A6DB23720}'): The system cannot find the file specified. (0x80070002).

• Edited by Aamir121M Wednesday, May 13, 2015 4:54 AM

did you upgrade your PC from Windows 7 or Windows 8 to Windows 8.1?

may I know your PC spec?

some of NIC or driver cant support Hyper-V virtual switch or need to be updated 

I would suggest to reinstall network driver (LAN, WIFI and Bluetooth) the driver or update to the latest version (find the driver and updated one at your PC manufactured site). Also update your chipset (if any)

• Edited by britishdhez Wednesday, May 13, 2015 5:53 AM
• Proposed as answer by MeipoXuMicrosoft contingent staff, Moderator 48 minutes ago

did you upgrade your PC from Windows 7 or Windows 8 to Windows 8.1?

may I know your PC spec?

some of NIC or driver cant support Hyper-V virtual switch or need to be updated 

I would suggest to reinstall network driver (LAN, WIFI and Bluetooth) the driver or update to the latest version (find the driver and updated one at your PC manufactured site). Also update your chipset (if any)

• Edited by britishdhez Wednesday, May 13, 2015 5:53 AM
• Proposed as answer by MeipoXuMicrosoft contingent staff, Moderator Thursday, May 14, 2015 6:34 AM

are you running antivirus?  (if so, did you add the exclusions).