hp officejet pro 8500 a909 serries doesn't install.

and when i start the HP Solution Center it can't run because your device is not complete???

I have one of those in my home office and it works fine on Windows 7 (desktop and laptop) and now Windows 8 laptop.

Uninstall the HP Software completely (all bits including the IRIS OCR). Now go to Printer Server Management, Driver Tab and delete the HP8500 driver(s). Don't forget the HP 8500 FAX.   You get the Printer Server Management in Devices and Printers. Click once on any printer and the menu bar appears.

Now restart the computer.

Try install the software again as a network printer and allow it to find the printer.

If you are willing, before installing above, look at the printer documentation and see if you can give the Printer a Static IP address on your network. My network DHCP is .100-.149. My Printer is on 192.168.100.11 and that is outside the DHCP range. It is worth doing if you are willing .

... Thinkpads_User

HP usually try to install an amazing mass of bloatware, none of which you'll ever need. I would try to install the printer (and scanner) driver only. Start by uninstalling the current mess (from Control Panel > Remove Software). Then reinstall drivers only.

If necessary, you can download basic print and scan drivers from this site:

http://h20000.www2.hp.com/bizsupport/TechSupport/DriverDownload.jsp?prodNameId=3752455&cc=us&taskId=135&prodSeriesId=3752454

if the above does not help you out; your OS may be corrupt - then run SFC, or a repair:
http://www.sevenforums.com/tutorials/681-startup-repair.html            REPAIR
http://www.sevenforums.com/tutorials/1538-sfc-scannow-command-system-file-checker.html         SFC

thanks! this worked!