Problem scenario
You have OpenSSH installed on a Windows machine. You are in a PowerShell prompt as Administrator in the directory where the ssh-keygen.exe file is. You run this: .\ssh-keygen.exe -t rsa
You get "Generating public/private rsa key pair." No new prompt appears. It hangs (or stalls) for a long time. You wait, and find that it is essentially frozen. You control-c to interrupt it and move on.
You are in a PowerShell prompt as Administrator in the directory where the ssh-keygen.exe file is. You run this: .\ssh-keygen.exe -t rsa -f C:\\Program Files\\OpenSSH\\Openssh-Win64\\newfile
No new prompt appears. It hangs (or stalls) for a long time. You wait, and find that it is essentially frozen. You control-c to interrupt it and move on.
How do you generate a public/private rsa key pair?
Possible Solution #1
Open a cmd prompt. You do not need to do it as Administrator. cd to the directory where ssh-keygen.exe is. Use this command ssh-keygen -t rsa (with no .exe). This creates a private/public key pair.
Alternative solution #2
Open a PowerShell prompt but not as administrator. Run this command: ssh-keygen -t rsa