Seems few critical files required for patching are modified or deleted, Please re-install PS.
Please provide me following log files to ascertain the same.
PS patch Installer logs
Program Files(x86)\Common Files\Adobe\Installers
You can zip all the files together and send us through mail to firstname.lastname@example.org.
Appreciate your help. Apologize for the inconvenience.
Thanks for quick reply. I sent you the two last log files.
I have not removed any Adobe files manually. I wil wait re-installing the lot till you had a look at logs
Jeff also posted this link for trouble shooting Photoshop problems there is a section that deals update problems.
Troubleshoot Update Errors
Many update errors are caused by missing or modified files required by Photoshop, typically by a disk cleanup utility (Ex: CleanMyMac, MacKeeper, etc). Make sure you have the latest updates for your clean-up utilities or discontinue use.
Explanations of error codes:
U = Updater.
44 = Install Update Error
M1 = Automatic
M2 = Standalone mode
P = Patcher
6 = Done With Errors
7 = Installation Failed
ISSUE: Installation failed. Error Code: U44M1P7, U44M2P7, U44M1P6
SOLUTION: Run the installer. Reinstall Photoshop CS6 to repair/replace the missing/modified file. Select Help>Updates… to run the updater again.http://helpx.adobe.com/creative-suite/kb/error-u44m1p7-installing-upda tes-ccm.html
ISSUE: The adobe update 126.96.36.199 errors with code U44M1I210.
SOLUTION: Restart your system, download and install the updates manually. See “Solution 3″ here. http://helpx.adobe.com/creative-suite/kb/error-u44m1i210-installing-up dates-ccm.html
After I installed CS6 on top of itself all the Updates installed without problems. My Plug-ins, Extension and Script tree addition were all still intact and working.