Quote: Originally Posted by
YKeong 
I'm having this same issue as well on the HP L7580 and HP was not able to
assist. It demonstrated similar symptom as yours.
"cplummer" wrote:
> Hi
>
> I am having some problems installing a HP Deskjet 5940 under Windows Vista.
> I have run the install file for Windows Vista which I downloaded from the HP
> website this Installs the driver and some other HP software OK but it gets
> stuck at 96% and won't go any further so I have to restart my computer to
> exit the setup.
>
> When the computer restarts I can print documents ok but when I got to access
> the HP Solution Centre to change some settings. I get the following error
> message "No HP devices have been detected. Solution Center will close now.".
> I have contacted HP about this issue and was told several methods of
> installing drivers which didn't solve the problem. There latest solution now
> has been to shift the blame to Microsoft and tell me to contact them. I don't
> belive it is a Microsoft problem but thought I should check on here to make
> sure and then I can get back to HP about it.
>
> Does anyone know a way of fixing this so that I can access the HP Solution
> Center?
>
> Thanks
> Craig
I had the same problem with a photosmart 2575 and x32 system. A link in HP forums mentioned that the printer un-install does not remove all of the directories, specifically the Digital Imaging directory within the HP directory. I un-installed the printer and then deleted the Digital Imaging directory, reloaded the printer drivers and it worked. I think that info on HP printers, as they are first detected, are stored within this directory and the Solution Center points to the old printer footprint. If all of this is correct, then this seems to be an HP problem. The digital imaging directory within my system is located at C:\Programs\Hp\Digital Imaging.