Attn HP Experts: HP Solutions Centre (still) not detecting printer (Advanced Help Needed)

1.  A brief, descriptive issue summary:

"HP Solution Centre Cannot Run because your device installation is not complete"

After trying all solutions re device and software installation on this forum I have not been able to resolve the issue. However I believe I have narrowed down the problem and require expert advice on how to proceed.

Taking a step back, all I want to do is to be able to SCAN MULTIPLE PAGES, perform OCR (Optional) publish/print to PDF. If you can advise me how to do ALL of this quickly and efficiently without HP Solution Centre I would also be happy. Note the following are NOT valid suggestions as they do not allow me to scan mutliple pages into a single PDF.

X - Webscanner

X - Import/Capture to Paint

X - Windows Fax & Scan

2. A detailed message with the following information:

     Key Product information:

Printer Model: HP Photosmart C4700

    Operating System (including service pack revision): 

Windows 7 Home Premium 64-Bit version. Service Pack 1

1. This is what I believe is the core problem here - I require your expert advice on how to proceed.

Source: HPDiagnosticCoreUI_PSdrServer.log

Key Excerpt:

[Jan 13 2015][17:43:13][6584][ERROR][SDURegistryMismatchIssue.cpp][CSDURegistryMismatchIssue:iagnose][ProfileWritePath OK.]
[Jan 13 2015][17:43:13][6584][INFO][SDURegistryMismatchIssue.cpp][CSDURegistryMismatchIssue::CheckRegistry][Checks the regsitry mismatch.]
[Jan 13 2015][17:43:13][6584][ERROR][SDURegistryMismatchIssue.cpp][CSDURegistryMismatchIssue::CheckRegistry][Failed to get CUE_DEVICE_ID from registry for diagnosing Registry issue.Path : SYSTEM\CurrentControlSet\Control\Class\{6bdd1fc6-810f-11d0-bec7-08002be2092f}\0001\DeviceData][Jan 13 2015][17:43:13][6584][ERROR][SDURegistryMismatchIssue.cpp][CSDURegistryMismatchIssue:etCUEDeviceID][Failed to get the device instance id.]
[Jan 13 2015][17:43:13][6584][ERROR][SDURegistryMismatchIssue.cpp][CSDURegistryMismatchIssue::CheckRegistry][Failed to set the value of CUEDeviceID.]
[Jan 13 2015][17:43:13][6584][INFO][SDURegistryMismatchIssue.cpp][CSDURegistryMismatchIssue:iagnose][Found registry Issue.]
[Jan 13 2015][17:43:13][6584][ERROR_EX][Error.cpp][CError:ispatchCustomError][528][Failed to fix the registry mismatch.]

  Given I have uninstalled (Inc using the Uninstall_L4.bat) and re-installed several times, this is either because the installer is not configured correctly for Windows 7 Home Sp1 OR the HP Solution Softward is searching for the wrong identifier - i.e. "CUE_Device_ID" instead of just "DeviceID".

To help you diagnose, below is the contents of my registry for the below registry path. Point to note is that there is NO SUCH IDENTIFIER with the entry of CUE_DEVICE_ID.

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Class\{6BDD1FC6-810F-11D0-BEC7-08002BE2092F}\0001

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Class\{6BDD1FC6-810F-11D0-BEC7-08002BE2092F}\0001]
"CoInstallers32"=hex(7):68,00,70,00,70,00,6c,00,64,00,63,00,6f,00,69,00,2e,00,\
  64,00,6c,00,6c,00,2c,00,20,00,50,00,72,00,65,00,6c,00,6f,00,61,00,64,00,44,\
  00,72,00,69,00,76,00,65,00,72,00,43,00,6f,00,49,00,6e,00,73,00,74,00,61,00,\
  6c,00,6c,00,45,00,6e,00,74,00,72,00,79,00,50,00,6f,00,69,00,6e,00,74,00,00,\
  00,68,00,70,00,6f,00,73,00,63,00,5f,00,70,00,30,00,32,00,61,00,2e,00,64,00,\
  6c,00,6c,00,2c,00,48,00,50,00,53,00,63,00,61,00,6e,00,6e,00,65,00,72,00,43,\
  00,6f,00,49,00,6e,00,73,00,74,00,61,00,6c,00,6c,00,65,00,72,00,00,00,00,00
"HardwareConfig"=hex:01
"DevLoader"="*NTKERN"
"NTMPDriver"="usbscan.sys"
"USDClass"="{FF47532F-9798-4290-9493-02CB5977D8F9}"
"InfPath"="oem43.inf"
"IncludedInfs"=hex(7):73,00,74,00,69,00,2e,00,69,00,6e,00,66,00,00,00,00,00
"InfSection"="IOP.Usb.NTWIA"
"ProviderName"="Hewlett-Packard"
"DriverDateData"=hex:00,c0,90,3e,5a,5a,c9,01
"DriverDate"="12-10-2008"
"DriverVersion"="8.0.0.0"
"MatchingDeviceId"="usb\\vid_03f0&pid_7511&mi_00"
"DriverDesc"="HP Photosmart C4700"
"CreateFileName"="\\\\.\\Usbscan1"
"SubClass"="StillImage"
"Capabilities"=dword:00000030
"DeviceType"=dword:00000001
"DeviceSubType"=dword:00000002
"ICMProfiles"="sRGB Color Space Profile.icm"
"FriendlyName"="HP Photosmart C4700"
"DeviceID"="{6BDD1FC6-810F-11D0-BEC7-08002BE2092F}\\0000"
"Vendor"="Hewlett-Packard"
"IsPnP"=dword:00000001

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Class\{6BDD1FC6-810F-11D0-BEC7-08002BE2092F}\0001\DeviceData]
"HasScanButton"=dword:00000001
"Resolutions"="75,100,150,200,300,600,1200,2400"
"ResDefault"=dword:000000c8
"LoadSettingsOnce"=dword:00000002
"ScrollCap0"=dword:00000000
"MaskADF"=dword:00000000
"TwainDSmodule"="hpqgnds2"
"TulipIOType"=dword:00000001
"TwainDS"="HP Photosmart C4700"
"Server"="local"
"InstallRegPath"="Software\\Hewlett-Packard\\DigitalImaging"
"UI Class ID"="{4DB1AD10-3391-11D2-9A33-00C04FA36145}"
"EdnaCLSID"="{8D4041C5-BF2C-11d5-9888-0060B0EF3BC7}"
"TulipCLSID"="{CC72FF79-208C-4182-BF6F-433E884A629A}"
"TulipDriver"="hpost_p02c.dll"
"CommonDataFolder"="Scanjet"
"ICMProfile"=hex(7):73,00,52,00,47,00,42,00,20,00,43,00,6f,00,6c,00,6f,00,72,\
  00,20,00,53,00,70,00,61,00,63,00,65,00,20,00,50,00,72,00,6f,00,66,00,69,00,\
  6c,00,65,00,2e,00,69,00,63,00,6d,00,00,00,00,00
"HWCompressionTypesSupported"=dword:00000005
"HWCompressionTypeDefault"=dword:00000004
"HWMaxPixelDepth"=dword:00000010
"HWLegalConfigSupported"=dword:00000000
"ADFSupported"=dword:00000000
"ADFDuplexSupported"=dword:00000000
"HasADFDuplexSwitch"=dword:00000000
"HWExtendedLampSupported"=dword:00000000
"TMASupported"=dword:00000000
"ModelString"="pst_p02c"
"ExactModelString"="pst_p02c"
"HW6ColorScanCapableGlass"=dword:00000000
"HW6ColorScanCapableTMA"=dword:00000000
"HWDustAndScratchRemovalCapable"=dword:00000000

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Class\{6BDD1FC6-810F-11D0-BEC7-08002BE2092F}\0001\Events]

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Class\{6BDD1FC6-810F-11D0-BEC7-08002BE2092F}\0001\Events\PSC_SCAN]
"Index"=dword:00000000
@="Scan button press"
"GUID"="{03A5651B-EAE9-4D35-974D-B97C0B5A04FE}"
"LaunchApplications"="hp scanning software"

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Class\{6BDD1FC6-810F-11D0-BEC7-08002BE2092F}\0001\Events\PSC_TMA]
"Index"=dword:00000001
"FriendlyName"="Scan Film button"
@="Scan Film button press"

• Troubleshooting performed: 
• I installed basic-only software/driver, then Dital Imaging Monitor and HP Solution Centre.
• I received the "HP Solution Centre Cannot Run because your device installation is not complete" error.
• I uninstalled all HP Software and re-installed FULL software from support site for this model (same error).
• I browsed the forums, ran the uninstall l4 bat and re-installed using USB-Cable mode, but this also resulted in the same error when opening HP Solution Centre.
•  I Ran HP Print and Scan Doctor and this gave me the pointer that something was still wrong in the registry "A problem was found with device registration" (see attached).
• I came accross the HPDiagnosticCoreUI_PSdrServer.log file and saw the specific registry path issue, and that it was not fixed by the tool, but do not know how to proceed.

• Connection Method: Initially wireless but also tried USB.

Thanks

Scrittore