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Re: PFC.sys again
PFC.sys is an older lower filter driver for CD\DVD drives. It is NOT compatible with 64 bit Windows and when enabled causes system instability and blue screen errors. Windows attempts to automatically disable it and records it as errors in the event viewer.
MTU acknowledged this to be installed with earlier versions of Microstudio but according to their support ticket: "mtusupport - If you are running 64 bit, then you need to have version 4.23, which pulled this file out and will run under 64 bit."
The Microstudio installer did not pull this file out as I had to manually remove the file and all references to it in the registry. Microstudio 4.23, in fact, reinstalled it!
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