Thank you all for your answers.
I already knew the answer I just wanted to be sure.
Maybe I wasn't clear but I already Lost the password (because I never saved it because I knew that private key is enough), but then a second later - second guessing came in , because who know, what works for BTC or any other coin not necessarily means it's the same in ETH.
but with that I do understand that it's all comes to the same cryptography- AES128..so the private key can be used after opening a new wallet and import the private key.
Just wanted to be 100% sure that I won't get f in the future.
Good. You could lock the thread if you think you found your answer from one of the members from page 1 to 3.
That way we won't invite spam posts later and in the future. Good luck in keeping your security stronger. You could look at
Wallet Software and look for something that suits your needs.