snap definitely works. I use it on a daily basis.
I see , but all information , playlist , etc is in the retroarch install by the command install , so If I download the version appimage , I gonna traslate all that information to the new retroarch and is too much that 
I understand but Unfortunately a lot funtion on snap retroarch is does´t work in that version
I know you try to help me and I appreciate it that , I just want to keep play in retroarch that all 
Try these
Put these into your terminal, without quotation marks:
“sudo apt purge retroarch”
“whereis retroarch.cfg”
Head to that folder for retroarch.cfg file, delete it.
“sudo apt install retroarch”
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so… I delete retroarch First? or I delete the cfg First and then I delete retroarch?
Purge, find and delete cfg file, install again. Probably will remove everything though
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Ok I gonna try thanks 
Yeah but probably will remove all, playlists too. Just saying. Try deleting cfg first. See if it helps.
Done and the same problem…
Look at home folder, isn’t a folder there named /.config/retroarch? See if cfg is there.
Or else probably “XDG_RUNTIME_DIR not set in the eviroment” is your problem. Which means it cannot access some things (probably your apt get update touched some other files too, like video driver).
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yeah and when I used the terminal , sudo retroarch appear that message
That is an environment variable that is set automatically when you log in. It tells any program you run where to find a user-specific directory in which it can store small temporary files.
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So , What I can do to fix that problem?
If I had a working Linux mint I could try to find a working solution. Now I only have windows 10. Try this I hope it won’t break your system lol
mkdir -pv ~/.cache/xdgr
export XDG_RUNTIME_DIR=$PATH:~/.cache/xdgr
I don´t know rick xd I don´t want loose my pc hahaha