I can't open and use my reader--says it's missing a patch. I can open pdf documents in 9, but can't print them. I can't remove and re-install because the patch is missing. I've also tried to install 9 again, but says a newer version exists and exits. Any ideas on where the patch is and how I can repair my reader?
Use the Microsoft Installer Cleanup tool to remove Reader from your system. Then download the latest full version of Reader and patch up to the latest version if necessary. Generally you must install all patches in order of their release.