Get error "Exit code:7" on installing Acrobat DC

J'ai ce message...

<PRE>Exit Code: 7

Please see specific errors below for troubleshooting. For example,  ERROR: DW003, DW071 ...

-------------------------------------- Summary --------------------------------------

- 0 fatal error(s), 2 error(s)

----------- Payload: Adobe Acrobat DC 17.9.20058.0 Adobe Acrobat\Setup.exe_17.009.20058 -----------

ERROR: DW071:

ERROR: DW003: Third party payload installer Adobe Acrobat\Setup.exe failed with exit code: 1603

-------------------------------------------------------------------------------------

</PRE>

J'ai essayé le Adobe Creative Cloud Cleaner tool mais ça ne change rien...

Une idée ?

Merci