Windows 10: I uninstalled minecraft and reinstalled it and all my worlds are gone how do I get them back??

Hi I recently uninstalled minecraft and reinstalled it because it was buggy but when I reinstalled it none of my worlds that I worked hours on were there if anyone can help me get them back I would literally cry plz help a fellow game out :

:)

 

Minecraft worlds are gone

My son has a minecraft window 10 version. We have uninstalled the version last night and tried to reinstall it right away.

He had twenty worlds created under his account. We were able to retrieve information as a list of friends under the account.

So many of his friends have also worked to build each world.

Please let me know if there are any ways to retrieve all of the world.

Thank you, Nobuko

 

Minecraft worlds gone after reinstall

 

Minecraft Windows 10 edition world gone after uninstalling

So I recently updated to the beta version of Minecraft Windows 10 edition, not java after wanting to use the structure blocks. I updated to the beta version the worlds were still there Btw I only joined one world and even, made a copy of
the world just in case. then I had to uninstall Minecraft so I could go back to the stable version because my friends hade that version then suddenly all my worlds were gone and most of my settings were gone to ANY HELP!!!