It would help to know what you mean by "everything".
I presume you mean your DATA (documents, videos, pictures, music, etc.).
There are many ways to do that. The "simplest" might be a direct copy/paste of those folders to a USB external hard drive and then to the new computer. There are ways to do it through the cloud (OneDrive and third-party applications, such as Carbonite). And there are other strategies, as well, but not all file transfer tools work under Win10.
A Google search of "migrating data from Windows 7 to Windows 10" or "moving my data to a new computer" should turn up several approaches.
You would not transfer the OS.
And, for best results, you would not transfer installed programs or settings, especially between Win7 and Win10.
The safest and cleanest thing to do would be to install all your programs from scratch, using fresh copies of the installers/setup files from the software publisher's own website.
If the programs are licensed, you may need to first deactivate the license and uninstall the program from the old computer before you install and activate on the new one.
Bottom line: it might be best to research this a bit via a standard internet search engine (and/or perhaps the tutorials here or at other fora).
There is no one single "best" way to accomplish the migration and you'll need to decide what works best for you.
Edited by MoxieMomma, 01 December 2016 - 10:06 AM.