*NEED HELP* VMBOX

I'm following this guide: https://www.saintlad.com/install-macos-sierra-in-virtualbox-on-windows-10/ and I'm at the final part where I have to enter code into the command prompt, but then I get this message: "C:\Program Files\Oracle\VirtualBox>cd "C:\Program Files\Oracle\VirtualBox\"

C:\Program Files\Oracle\VirtualBox>VBoxManage.exe modifyvm "macOS 10.12 Sierra" --cpuidset 00000001 000106e5 00100800 0098e3fd bfebfbff VBoxManage.exe: error: Failed to create a session object! VBoxManage.exe: error: Code E_NOINTERFACE (0x80004002) - No such interface supported (extended info not available)

C:\Program Files\Oracle\VirtualBox>VBoxManage setextradata "macOS 10.12 Sierra" "VBoxInternal/Devices/efi/0/Config/DmiSystemProduct" "iMac11,3" VBoxManage.exe: error: Failed to create a session object! VBoxManage.exe: error: Code E_NOINTERFACE (0x80004002) - No such interface supported (extended info not available)

C:\Program Files\Oracle\VirtualBox>VBoxManage setextradata "macOS 10.12 Sierra" "VBoxInternal/Devices/efi/0/Config/DmiSystemVersion" "1.0" VBoxManage.exe: error: Failed to create a session object! VBoxManage.exe: error: Code E_NOINTERFACE (0x80004002) - No such interface supported (extended info not available)

C:\Program Files\Oracle\VirtualBox>VBoxManage setextradata "macOS 10.12 Sierra" "VBoxInternal/Devices/efi/0/Config/DmiBoardProduct" "Iloveapple" VBoxManage.exe: error: Failed to create a session object! VBoxManage.exe: error: Code E_NOINTERFACE (0x80004002) - No such interface supported (extended info not available)

C:\Program Files\Oracle\VirtualBox>VBoxManage setextradata "macOS 10.12 Sierra" "VBoxInternal/Devices/smc/0/Config/DeviceKey" "ourhardworkbythesewordsguardedpleasedontsteal(c)AppleComputerInc" VBoxManage.exe: error: Failed to create a session object! VBoxManage.exe: error: Code E_NOINTERFACE (0x80004002) - No such interface supported (extended info not available)

C:\Program Files\Oracle\VirtualBox>VBoxManage setextradata "macOS 10.12 Sierra" "VBoxInternal/Devices/smc/0/Config/GetKeyFromRealSMC" 1 VBoxManage.exe: error: Failed to create a session object! VBoxManage.exe: error: Code E_NOINTERFACE (0x80004002) - No such interface supported (extended info not available)

C:\Program Files\Oracle\VirtualBox>"

I don't know what to do, any help would be appreciated (If this isn't the right subreddit to post please tell me lol)