How do I save my XEM in safe?

Sorry, I am a very new user to ask a stupid question.

How do i save my XEM in safe? It look like the XEM save in my local computer, if my computer cannot open again, then how can I find out or get back my XEM?

What important information for my account I have to remember?

Thank you very much!.

I think that the tutorial I made may be useful:

If you still have some question after watching it, please ask :slight_smile:
Also if you are going into super-safe mode, you should watch my video about creating multisignature account, and/or use the sulotion like NEM authenticator (mobile app).