Open GIt bash from your installed program.
Type
$ ssh-keygen -t rsa -b 4096 -C "youremail@example.com"
And output generated
Generating public/private rsa key pair.
Enter file in which to save the key (/c/Users/putham/.ssh/id_rsa):
Created directory '/c/Users/putham/.ssh'.
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /c/Users/putham/.ssh/id_rsa.
Your public key has been saved in /c/Users/putham/.ssh/id_rsa.pub.
The key fingerprint is:
SHA256:odTtqkj3SxCQj9vGO7lCabp7qTNQaoMjpulTvI/NMts youremail@example.com
The key's randomart image is:
+---[RSA 4096]----+
| .. |
| .. . . |
| oo o . |
| . ...o o |
|.o. =o S . |
|*+ o= +. . |
|=+o+oo.oo |
|o.+=Oo++ |
|..=X*Eooo. |
+----[SHA256]-----+