Hardware : GCP
Click on the below link to know how to create the SSH key using puTTY.
After saving private key, Open the console.
Open Menu > Compute > VM Instances
Copy the External IP
Now open the WinSCP. Paste the host name which is copied. Give any username and password.
Click on Advanced.
Click SSH > Authentication.
Click on the 3 dots button
Select the private key file which is saved. Click OK
Give the passphrase for the key. Click OK
Now we can access the files in the compute instance.