mydriver.sys did not appear in the selection tab under "software device" in HLK studio

Question

I wrote a driver, mydriver, which is based on winio(https://github.com/starofrainnight/winio) to directly access I/O ports and physical memory. I'd like to upload the 64-bit version of mydriver to Microsoft to have it crossed signed to meet driver signing requirements. I installed mydriver successfully using the command shown below:

pnputil.exe -i -a mydriver.inf

However, mydriver.sys did not appear in the selection tab under "software device" in HLK studio. The mydriver.inf is shown as below.

[Version]

Signature="$WINDOWS NT$"

Class=System

ClassGuid={4d36e97d-e325-11ce-bfc1-08002be10318}

Provider=%ManufacturerName%

DriverVer = 08/24/2023,0.0.0.3

CatalogFile=mydriver.cat

[DestinationDirs]

DefaultDestDir = 12

[SourceDisksNames]

1 = %DiskName%,,,""

[SourceDisksFiles]

[Manufacturer]

%ManufacturerName%=Standard,NTamd64

[Standard.NTamd64]

[Strings]

ManufacturerName="" ;TODO: Replace with your manufacturer name

ClassName=""

DiskName="mydriver Source Disk"