It's a bug from Windows Vista that managed to survive the Windows Seven version... Check the folder you changed from read-only, it's probably set as read-only again. Just avoid it altogether and get your Poser and external runtimes away from any Program Files folder ;)

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Feel free to call me Ohki!

Poser Pro 11, Poser 12 and Poser 13, Windows 10, Superfly junkie. My units are milimeters.

Persephone (the computer): AMD Ryzen 9 5900x, RTX 3070 GPU, 96gb ram.