I searched the forum and tried all the solutions offered and still get the HPSU-0004 error code for no support library software when I attempt to download the HP update utility. I need to scan photos but the 'scan to' dropdown is blank so first I attempted to download the critical update which didn't work. Then I tried to delete the HP update file and reinstall which also did not work. I found a link to download the HP active support library which also did not help. I then unistalled all HP files and re-installed the full driver and still the 'scan to' is blank. I don't know what else to do, can someone please help. I tried all these solutions on my Windows Vista desktop and Windows XP laptop for my HP OfficeJet 4500.
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