Acrobat Pro 9.5.1. update problem

After you remove acrobat, Try booting your mahcine in Safe Boot mode first and then enable the root user and try to install Acrobat 9 followed by its updates.

Start in Safe Boot mode | Mac OS X : http://helpx.adobe.com/x-productkb/global/start-safe-boot-mode-mac.html

Enable Root user : http://support.apple.com/kb/ht1528

Hope that Helps.

Cheers!!

Arpit

The only solution for it is to

1) Uninstall Acrobat

2) Re-install the acrobat using new user account

3) Then update it.

however this are link for your help:-

http://forums.adobe.com/thread/674762?tstart=1

http://helpx.adobe.com/acrobat/kb/troubleshoot-update-errors-acrobat-reader.html