@Sm0keydaBear12 said in IMPORTANT READ THIS!!! 100% Fix that works PSO2 Tweaker Can solve your Problems https://arks-layer.com/ It worked for me and many others. (NEW!! WITH VIDEO FROM Stone Legion - Let's Play):
I have the same issue after using the tweaker as the normal Microsoft Store problem, I reset my computer and the game no longer works. The main game files have moved and the launcher doesn't load.
Found a fix with the Tweaker, I've found out that after resetting the computer, files seem to have disappeared and need to be redownloaded. If anyone is having the same issue as myself, using the Tweaker and going to troubleshoot -> check for updates will download the files that disappeared and allow you to run the game.