In order to associate SSH Handler with a putty follow below procedure.
Backup your registry.
Download Putty x64 version (installed version) from HERE
Make sure that the location of
putty.exe is under
How to Register SSH Protocol
Download registry file from the following link HERE
Unzip file PuTTY_registry_key_PowerShell.reg
Double-Click on PuTTY_registry_key_PowerShell.reg
Press YES twice -> OK