Да вот почему:
C:\Users\ntfs>ssh 192.168.1.100 -l root
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@ WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
Someone could be eavesdropping on you right now (man-in-the-middle attack)!
It is also possible that a host key has just been changed.
The fingerprint for the ECDSA key sent by the remote host is
SHA256:JxrcnGCxMGSUqr9tK/a//hId1mVHasf2MAFU/7FadOI.
Please contact your system administrator.
Add correct host key in C:\\Users\\ntfs/.ssh/known_hosts to get rid of this message.
Offending ECDSA key in C:\\Users\\ntfs/.ssh/known_hosts:5
ECDSA host key for 192.168.1.100 has changed and you have requested strict checking.
Host key verification failed.
C:\Users\ntfs>del C:\\Users\\ntfs/.ssh/known_hosts
Недопустимый ключ: ".ssh".
C:\Users\ntfs>del "C:\\Users\\ntfs/.ssh/known_hosts"
Указан недопустимый путь.
C:\Users\ntfs>
Не знаю как вы можете с этим говном работать...