The link mentions that inf2cat needs Win8 specific options: 8_x86, 8_x64 I don't know what signing tool you use but may be that one should also be updated for Win8 compatibility and may also need Win8 specific arguments. 2012/8/2 Graeme Gill <graeme@xxxxxxxxxxxxx> > János, Tóth F. wrote: > > It seems like drivers should be signed for Windows 8 as it's mentioned > here: > > The 64 bit drivers included with Argyll are signed. So it's not > that. It could be that they've change the requirements wrt to > .inf or .cat files :-( > > Graeme Gill. > >