After installing Adobe Acrobat X Standard, utilizing the 'Check for Updates' feature returns the error "Update failed. Updates have been disabled by your system policy. Error 100600"
Searching around, I saw some mention that this happened on Acrobat 9 with UAC enabled.. I previously had Acrobat 9 Standard with UAC enabled, and did not encounter this issue. For Acrobat X, I was able to get it to check and install updates by changing the compatibility settings to 'Run As Administrator' -- but leaving it this way causes Acrobat to throw up a UAC prompt everytime its launched. Is there a fix for this?
Are you logged in as the administrator? Generally you need to be the administrator to do updates.
Have you tried to download updates from http://www.adobe.com/support/downloads/product.jsp?product=1&platform= Windows and install the updates in order as needed.
Yes, logged in AS an administrator, not the "Administrator" account (which is hidden in Windows 7 anyway for interactive logins). This is a domain account, on a domain machine - and the domain account is part of the local Administrators group.
I can manually download the updates and install them without issue by going to the link mentioned above. Its when I "Check for Updates" within the application that it throws the error. The only way I could get it to work was to change the compatibility settings for the shortcut to "Adobe Acrobat X Standard" to check the box "Run this program as an administrator" -- but that throws up the UAC prompt everytime Acrobat launches (even viewing PDFs)
The correct behavior should be that it should be able to check for updates without running as an administrator -- its not changing anything on your system at that point. If there are updates available, it would then ask if you wanted to download it -- at that point, it still is not making changes to the system. Once the download completes, it puts an Acrobat icon in the system tray. If you then click that icon and tell it to install, only then should it be throwing up the UAC prompt.
You might try the actual Administrator account. Acrobat used to be particular about that, but I thought it went away. I am not saying it is the problem, just a thought. It almost sounds like there is a permissions issue someplace in the system that is preventing the update, but I would have no clue how to fix it if I even guess correctly.
After reading this I came up with the bright idea of looking at my services. Adobe Update is a service and I changed the service to run logged on as the administrator account. It was running as local service. Hope this works to get the service to download the update.
The last activity on this thread was over a year ago. The solution was to hold SHIFT down while right-clicking on the Adobe Acrobat shortcut, choosing 'Run As Administrator', and then performing the 'Check for Updates' function.
I do NOT suggest changing the service from 'Local Service' to 'Administrator' for security reasons. The 'LocalService' account has built-in protections, as it is an account with limited abilities on the local system, and acts as an anonymous account over a network..
Can you please try the following-
Using Regedit.exe (Registry editor) got to
HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\Installer and check if DisablePatch value is set to 1
If it is, delete this value
Also, check DisableLUAPatching value
If it is set to 1, delete it
Note that on 64bit systems, you should also check values under
As an alternative, you can always download the updates from http://www.adobe.com/support/downloads/product.jsp?product=1&platform= Windows (similar link for MAC).
LeoAdobeX, thanks for the information. Unfortunately I have to set the DisableLUAPAtching value to 1 because of the settings I must apply. What would be great is if I could make an exception for just Adobe Reader.