AuthGeek
Free offline two factor authenticator for Windows - no account
AuthGeek keeps your two factor codes on your own computer, in one encrypted file. No account, no server, no sync.
Choose a master password and AuthGeek makes the vault. It never leaves the machine and it cannot be reset, which is the point of it, and also why backup and restore came first rather than last.
Add accounts however you have them: paste the setup link, read the QR code out of a screenshot, or type the secret in by hand. TOTP and HOTP are both supported, and you can bring the whole lot across from Google Authenticator.
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