cant find my game after re-installing windows 10

should be under your download list or just search the store, if you re install windows then any games previously downloaded will need to be downloaded again as windows will not use a previous installations apps due to folder encryption.

not in downloads and cant get it from the store itself

i have even tried install a new windows 10, but the game still cant launch after sync my data. I switch to another new microsoft account and launch the game with no problem, seems there have some problem on my save data on cloud and when the data load it just cant load into game. i cannot find any method to delete my cloud save

Hey there!

A suggestion to troubleshoot this games issue would be re-installation. Check out this article How to uninstall and reinstall
a game on Windows 10 after uninstalling the game, simply re-install by following the steps. Please let us know how it goes!

ok found the world save files copied them. Uninstalled and re-installed Minecraft for windows 10. After installing and updating created a new world, after 10 minutes of playing the game crashed while digging dirt. So this is the 3rd instance of the game
crashing while mining/digging... I would say in total in the last 3 days my game has crashed probably close to 300 times.