Virtual Audio Cable 4 – woops, an unsigned driver

Vista requires signed drivers. I found out the hard way a few weeks ago when I installed a demo version of Corel Photo Album 6 that ignoring this error can be very troublesome. I have found out the hard way that you must uninstall any programs that install unsigned drivers before you reboot. Vista refuses to boot when there is an unsigned driver. Recovery requires that you boot with the recovery disk and then do a system repair. This is a very nasty and time consuming fix. You can use a System Recovery after the uninstall, but do not reboot before you attempt this.
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