Open powershell and install the iis windwos feature

mkdir c:\inetpub\certs
New-WebVirtualDirectory -Site "Default Web Site" -Name "certs" -PhysicalPath "c:\inetpub\certs"

Open the IIS manager

Expand the Sites and expand the Default Web site.

Right click and create new virtual directory

Create the directory and name it certs. Select the path c:\inetpub\certs

After this, select the new virtual directory and select the icon named Directory Browsing

In the right pane, enable directory browsing