Re: Can't install Adobe Flash Player on OS X 10.9 (Safari 7.05)

Hello: having exact same symptoms, so I decided to try your steps and post my results as well. hope that's OK.

I tried to install and capture the log files in Console as you had directed, see log snippets below:

FlashPlayerInstallManager.log

Marker - Sep 15, 2014, 7:26:03 PM

2014-09-15 19:33:43 -0500 [I]  IM: ---------- log start ----------

2014-09-15 19:33:43 -0500 [I]  IM: All install checks pass

2014-09-15 19:33:52 -0500 [I]  IM: User does not have any processes that need to be closed before the Flash Player can be installed.

2014-09-15 19:33:52 -0500 [I]  IM: [install started]

2014-09-15 19:35:58 -0500 [I]  IM: ---------- log start ----------

2014-09-15 19:35:58 -0500 [I]  IM: All install checks pass

2014-09-15 19:36:05 -0500 [I]  IM: User does not have any processes that need to be closed before the Flash Player can be installed.

2014-09-15 19:36:05 -0500 [I]  IM: [install started]

2014-09-15 19:53:44 -0500 [I]  IM: ---------- log start ----------

2014-09-15 19:53:44 -0500 [I]  IM: All install checks pass

2014-09-15 19:53:44 -0500 [W]  IM: Unexpected umask value for process: 0

2014-09-15 19:53:44 -0500 [E]  IM: User has 1 process that needs to be closed.

2014-09-15 19:53:44 -0500 [E]  IM: Install failed with error code: 17.

2014-09-15 19:53:44 -0500 [I]  IM: ----------  log end  ----------

2014-09-15 19:54:29 -0500 [I]  IM: ---------- log start ----------

2014-09-15 19:54:29 -0500 [I]  IM: All install checks pass

2014-09-15 19:54:29 -0500 [W]  IM: Unexpected umask value for process: 0

2014-09-15 19:54:29 -0500 [I]  IM: User does not have any processes that need to be closed.

2014-09-15 19:54:29 -0500 [I]  IM: [install started]

Install.log

Marker - Sep 15, 2014, 7:33:21 PM

Sep 15 19:33:54 Jasons-iMac.local installer[7018]: JS: Flash Player Install: Performing volume check for /Volumes/The DeLorean

Sep 15 19:33:54 Jasons-iMac.local installer[7018]: JS: Flash Player Install: Error: Non-OS Volume detected.

Sep 15 19:33:54 Jasons-iMac.local installer[7018]: JS: Flash Player Install: Performing volume check for /Volumes/Tyrone the Media

Sep 15 19:33:54 Jasons-iMac.local installer[7018]: JS: Flash Player Install: Error: Non-OS Volume detected.

I also tried to run in debug mode, here is the host.developer.log file as you had requested.

Shared Files - Acrobat.com

Let me know if you can find a solution to the problem! I've been on looking for a fix for what seems like months. Please help!