When you select "Add this key to the cache" (or something like that) when using SFTP, it doesn't delete the registry key that putty uses when it saves the key.
New: Nemp (Jul 20, 2026), Platform 30.4.2 (Jul 07, 2026)
1,400+ portable packages, 1.2 billion downloads
We're operating at a loss but still ad free. Please donate if you can!
The 'add this key to the cache' feature is not yet supported and should not be used.
Sometimes, the impossible can become possible, if you're awesome!