I seem to not have been the nly one running into the issue of "LastError: 1813" and complaining about the file otp_notice_na.rtf, as seen here https://lowee.de/2020-05-27_14-23-37.png and followed by the launcher going into a loop, erroring out again https://lowee.de/pso2launcher_2020-05-27_14-16-11.png
I was able to get out of this by (temporarily) disabling Windows Defender AND specifically changing the File permissions for "C:\Program Files\WindowsApps\Mutable\100B7A24.oxyna_188.8.131.52_x64__wyfsmff9ynw7j\otp_notice_na.rtf" as well as pso2.exe - THIS FOLDER IS A LINK TO YOUR ACTUAL INSTALLATION DIRECTORY! So it doesn't matter if it's actually installed somewhere else.
To update the permissions, you first need to take ownership of the files and then add your user to the list of permissions. I also did this for the data subfolder and its contents, but i don't think that is necessary.
TO DO THIS:
- Go to the above mentioned folder.
- Right-Click the .rtf / .exe file
- "Search now"!
- Doubleclick your user or a group you are in Image
- confirm the dialogs
- Check "apply to subfolders and objects"
- Reopen the advanced security dialog
- You SHOULD be able to click "Add" now
- search for your user
- Full Access
Repeat this for any files the launcher may complain about.
Hope this helps!
See you ingame~!