Note: I had almost a computer hang the first time I tried and Task Manager would open and when I tried to close PDVD 12, it would disappear. I was able to use it to reboot my computer however.
If you try rebootiing right after installing the patch, you should not have any surprises. .
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BoilerPlate: To posters who ask for help -- it is nice to thank the volunteers who try to answer your questions !
Anything I post unless stated with a reference is my personal opinion.