https://bugs.freedesktop.org/show_bug.cgi?id=84603

V Stuart Foote <[email protected]> changed:

           What    |Removed                     |Added
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                 CC|                            |[email protected],
                   |                            |[email protected]

--- Comment #6 from V Stuart Foote <[email protected]> ---
The "Object already exists" error message is likely being caused by a Microsoft
security update done mid-August. Check system to see if KB2918614 (
http://support2.microsoft.com/kb/2918614 )was installed.  See the KB for
Windows registry work around. 

-=For the average LibreOffice users=-
Simplest is to perform an uninstall of affected program being updated,
LibreOffice in this case, and then do a fresh install. 

An uninstall/reinstall should not affect your LibreOffice per-user profiles
recorded in %APPDATA%.

Or the security patch can be reverted--but then it won't do its job of
protecting the MS Installer packages and database.


-=For the IT types=-
The uninstall(s) and reinstall(s) (with KB2918614 in place)  generates a
SourceHash value in the Windows system registry for each MS installer package
during installation--inclusion of that value allows any future MS installer
actions for repair or upgrade.  Its absence is what is causing the issue (and
why the uninstall & reinstall is needed for programs after the KB2918614
security patch is applied).

There is a mechanism for whitelisting described in the KB, and it is possible
to generate a hash of all preexisting installer packages present on a system.

-=Refs=-
http://ccmexec.com/2014/09/kb2918614-windows-installer-triggers-uac/
http://happysccm.com/kb2918614-uac-gate/

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