Adobe Reader 10.1.3 uses max CPU when closed

Question

We're having the problem where Adobe Reader uses all of a CPU core when a user is closing the program but the .exe file is still running in the background.
We're running 10.1.3 and have been using that since it was released but the problem just recently started. It's running on top of Windows 2008 SP2 with Citrix XenApp 5.0 installed and using DFS.
The trick with denying the user access to the "cRecentFiles" in the registry don't seem to solve the problem.
Anyone who knows a way to solve this?

Answer 1

If you have Adobe processes (AcroRd32.exe) showing in the task manager after you close the Acrobat Reader that use up a significant amount of processor speed.  This is what you can do to fix it. 
Basically the file that is used by the welcome screen (ReaderMessages) has become corrupted (that file is located here on Windows 7 C:\Users\%UserProfile%\AppData\LocalLow\Adobe\Acrobat\10.0.)   Deleting that file did not help on a long term basis, but by disabling the welcome screen it bypasses that file and will close normally.  Unfortunately Adobe does not have a built in way to disable the welcome screen but you can disable it by making a small addition into the registry.
1. Open the regeidt and navigate to
a. HKLM\SOFTWARE\Policies\Adobe\Acrobat Reader\10.0\FeatureLockDown
2. Add the a key with the name
a. cWelcomeScreen
3. Add a DWORD value to that key
a. bShowWelcomeScreen = 0
It should look like this when your finished
The welcome screen should not show when you open Acrobat Reader, and when you close the window the process should close with it.  If this fix does not work for you,  there might be something else causing your problem.