You have to delete pso2_bin in Program Files\ModifiableWindowsApps and restart the computer.
That's the only fix. If it won't even allow you to do that, you can work around the permissions by doing one of the following:
Start Windows 10 in Safe Mode and delete the folder
- Documentation here on how to start in Safe Mode.
- Delete the pso2_bin folder in Program Files\ModifiableWindowsApps
- Restart in normal mode.
Get a Linux LiveCD and delete the folder
- Go get an Ubuntu LiveCD. (Documentation here.)
- Tell your PC's BIOS to boot from the CD/DVD/BD-ROM Drive or USB Stick that it's installed/imaged to.
- If you don't know how to do this. Try shutting down your computer completely, and holding the DELETE key (or "Del") while the system is booting up. The key required to be pressed down varies based on the motherboard. This should bring up the BIOS for your computer. BIOS navigation is usually done using the arrow keys on your keyboard. A More modern BIOS may allow wired mice.
- Mount your hard drive in the LiveCD.
- Right-clicking the detected drive should give an option to mount. It may already be mounted though.
- Navigate to the Program Files\ModifiableWindowsApps folder and delete pso2_bin. (Make sure to empty the trash.)
- Shut down the computer completely.
- Take out the CD/DVD/BD-ROM or USB/Flash Drive.
- Start the computer normally (without a key pressed) from the hard drive.
- If 6-7 doesn't work, repeat step 2 but tell the PC's BIOS to boot from the hard disk. Then start the system normally without a key pressed.
Re-install Windows 10 Completely
- Back-up all of your documents that you want to keep onto a flash drive, google drive, etc.
- Go to Updates and Security in the Settings.
- Go to Recovery, and choose "Reset this PC."
- Choose "Remove everything."
- Choose the option to DOWNLOAD WINDOWS 10. (This is the easiest option.)
As a rule of thumb: Never, ever install a game to a secondary hard drive. Always install it to the same drive as your Operating System. Period.