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AcroRD32.exe high CPU usage on Remote Desktop Server



On a Windows 2012 R2 configured as a remote desktop server Adobe Reader process AcroRD32.exe is using a high amount of resources, with the process open multiple times for a single user. On testing and replicating, it was found that the process continues to run when Adobe Reader X(I) is closed.


The high CPU is caused by the Adobe messages that are presented at the initial splash screen when launching Adobe Reader. The screen shot below shows an example of this. The messages can cause adobe to crash on exit and increases the CPU usage.



You can resolve this issue by removing the ‘Messages from Adobe’ Feature. This can be done within Preferences – General – Messages from Adobe section within the application. However, on an RDS, you will want to remove this from all users. This can by navigating to the registry and creating the following entries…

HKEY_CURRENT_USER\Software\Adobe\Acrobat Reader\11.0\IPM
bShowMsgAtLaunch (REG_DWORD) 0
bDontShowMsgWhenViewingDoc (REG_DWORD) 0

Note: You may need to change version number (11.0) to the version installed on your operating system.

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