1. Installation of Windows software.

You will need the Yubico PIV tool installed on your system. This can be obtained from:

https://developers.yubico.com/yubico-piv-tool/Releases/

Under the Windows section, download and install the latest version MSI of the "yubico-piv-tool". This will be listed under either -win32.msi or -win64.mis. This will install the libykcs11.dll and yubico-piv-tool.exe.

The libykcs11.dll will be used by your Yubikey and SSH.

The yubico-piv-tool.exe to enroll your Yubikey as a Smartcard/PIV device.