> On Mon, Dec 14, 2009 at 6:43 PM, James Harper
> <james.harper@xxxxxxxxxxxxxxxx> wrote:
> >> In your case, you could probably enter safe mode, uninstall GPLPV,
> >> retry installation using the above method.
> > Unfortunately, that might not work. Windows will refuse to load
> if testsigning isn't right, and because it integrates itself into the
> driver stack as an 'upper filter', when it fails windows might fail
> stack, even in safe mode.
> That's new. At least for me :D
> So how can we recover from an incorrectly-installed GPLPV installation
Have good backups :)
Boot from the Install CD, go into recovery mode, and fix the registry.
Remove any value where XenPCI is in UpperFilters. Remove all xen*.sys
from windows\system32\drivers too.
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