Hi, everyone! I'm pretty new here so, nice to meet you. For start, usual I'm stupid when it comes to use new thing once I learn them a bit. Accidental I think I got some problems using Kali Linux: 1. I really don't know how to use it; 2. I tried to search on web how to.; 3. I want my Windows back.

At point 3, appears more problems.. like:
? Grub boot don't show in box menu my Windows, actually using dual boot loader.
? I'm only Wi-Fi user..
? I don't have USB Flash Drive or CD with same Windows or another Windows.

All my files are saved in there like a lot of pictures and videos from when I was only 3 and I don't wanna lose them.. please, if you can, help me.. I can't solve it alone..