the game was working fine up till this point. like the title says i cant start the game nor can i uninstall it....

Same issue, I want to uninstall but there is no way to do this.

Uninstall does work for me though somewhat. What I did was uninstall pso2 normally(it just look like nothing happened after you click uninstall), then wait for a while like 5-10 minutes then restart the system. After the restart, pso2 disappeared from the list of installed game, but you still need to take ownership of some folders to delete them from your HDD.

welcome to the microsoft that is hired by baby progrommers

@Neri6969 i tried it and it didnt work for me

Also having the same issue. I tried resetting Game Store, but same outcome. Nothing happens when i try to open it, and i can't uninstall it, to try again.