After installing Phantasy Star Online 2, I began to notice inconsistencies in my operating system's performance. As is the correct response, I ran a powershell with administrator privileges with the following commands:
dism /online /cleanup-image /checkhealth
Which resulted in a success as there was no corruption detected.
Secondly I performed sfc /scannow which found a corruption, repaired it, and I promptly restarted my computer as is the norm after such an operation.
However, now after restarting I have noticed that PSO2's folder is now 13GB smaller and failing to launch, or even uninstall properly. I am aware that the game is currently having issues installing and downloading via the Windows Store, however this is unrelated.
If this game is directly causing inconsistencies in my operating system when the game is not even running there is a severe flaw with this game's code and needs to be corrected immediately.
I did not edit any permissions or files directly, I simply downloaded the game and played as is the normal and intended operation of the software.
This is unacceptable and I hope this reaches a developer capable of preventing further damage to anyone's operating system.
More information on the inconsistencies I mentioned as this is very ambiguous:
Unstable network Taskbar becoming unusable Packet loss Unable to uninstall the game
Nothing else was downloaded or updated during this time, the fault of the inconsistency lies solely with PSO2