Error 1625 with Adobe Reader Update on Windows Server 2008 R2

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I’m running Windows Server 2008 R2 as a non-admin user with User Account Control turned on. The stupid Adobe Reader update thing pops up in the corner saying “Update available” and when I tell it to install, I get:

Error 1625: Update failed. Update not permitted by system policy.

Last time I fixed this by using Autoruns and removing the Adobe Updater thing from the list of programs to run. Of course, that means no updates unless I apply them manually, either. Today I found this forum thread with the actual answer:

  1. Open C:\Program Files (x86)\Common Files\Adobe\ARM\1.0 in Windows Explorer.
  2. Right-click AdobeARM.exe and “Run As Administrator.”
  3. When the “update available” balloon pops up in the corner, tell it to install. It should work now because it has the right permissions.

Done and done. Sort of annoying that Adobe hasn’t fixed this but… well, it is what it is.