Full driver installation won't work in win8.1 for officejet pro 8500 a909n. It gets to "checking system" but won't go any further. I have tried the removal tool, reinstall, etc. I can print but nothing else (scan, etc.} Everything is wireless. Computer is new hp laptop upgraded from win 8 to win8.1 before using. Everything worked with WinXP on another laptop that crashed.
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