Can't Update to Mavericks 10.9.4 an iTunes 11.3

Hello there,

since some weeks I can' upate my iMac from 10.9.3 to 10.9.4. The same wir iTunes from 11.2 to 11.3.
I try it multiple times with the App Store and manually with combo updates from the Apple website.
I tryed it also in the save mode. But nothing helps. (I got several hints in a german community: http://www.apfeltalk.de/community/threads/kann-keine-updates-installieren.398948 /#post-4365460)

I get no error messages exept this (see picture):

(No updates installed))

(You see that I installed the Updates several times but the App Store want to install the "new" updates again)

An this (see log file):

--------------------------------------------------------- Begin --

       System Version 10.9.3 (Build 13D65)
       "storeagent" Version ? (?)

    -------------------------------------------------------------------
Jul 30 23:25:43 Mattis-iMac.local storeagent[259] <Critical>: Daemon: Start date is 2014-07-30 21:25:41 +0000
Jul 30 23:25:44 Mattis-iMac.local storeagent[259] <Critical>: SoftwareMapLegacyAppSource: Legacy conversion enabled by preference
Jul 30 23:25:44 Mattis-iMac.local storeagent[259] <Critical>: SoftwareMapSpotlightSource: _queryDidFinish
Jul 30 23:25:44 Mattis-iMac.local storeagent[259] <Critical>: SoftwareMapSpotlightSource: After spotlight initial import and sync the spotlight map is: {
    }
Jul 30 23:25:44 Mattis-iMac.local storeagent[259] <Critical>: SoftwareMapSpotlightSource: MDQuery initial load took 0.006723 seconds to load 0 apps from 0 metadata records
Jul 30 23:25:44 Mattis-iMac.local storeagent[259] <Critical>: SoftwareMapLegacyAppSource: _queryDidFinish
Jul 30 23:25:44 Mattis-iMac.local storeagent[259] <Critical>: SoftwareMapLegacyAppSource: After spotlight initial import and sync the spotlight map is: {
    }
Jul 30 23:25:44 Mattis-iMac.local storeagent[259] <Critical>: SoftwareMapLegacyAppSource: MDQuery initial load took 0.010242 seconds to load 0 apps from 0 metadata records
Jul 30 23:25:44 Mattis-iMac.local storeagent[259] <Critical>: DownloadQueue: Setting downloads to paused so user can resume.
Jul 30 23:25:46 Mattis-iMac.local storeagent[259] <Critical>: Bag: Loaded bag type 1 from persisted store valid until 2014-07-31 00:29:25 +0000 (11019.20 seconds)
Jul 30 23:25:46 Mattis-iMac.local storeagent[259] <Critical>: SoftwareMapLaunchPadSource: Import of LaunchPad app list after change took 2.2904 seconds
Jul 30 23:25:47 Mattis-iMac.local storeagent[259] <Critical>: SoftwareMap: Software map rebuild took 2.3812 seconds for 42 records and produced: {
       
...

    }
Jul 30 23:28:01 Mattis-iMac.local storeagent[259] <Critical>: UpdateController: _availableUpdatesDidChange removing all updates available notifications because the badge count is 0
Jul 30 23:28:30 Mattis-iMac.local storeagent[259] <Critical>: SoftwareMapLaunchPadSource: Error from LaunchPad XPC Connection - <OS_xpc_error: <error: 0x111fb4a50> { count = 1, contents =
        "XPCErrorDescription" => <string: 0x111fb4e98> { length = 22, contents = "Connection interrupted" }
    }>

Here my System Details from ETRECheck:

EtreCheck version: 1.9.12 (48)

Report generated 7. August 2014 12:44:19 MESZ

Hardware Information:

iMac (24-inch, Early 2009) (Verified)

iMac - model: iMac9,1

1 2.93 GHz Intel Core 2 Duo CPU: 2 cores

8 GB RAM

Video Information:

NVIDIA GeForce GT 120 - VRAM: 256 MB

iMac 1920 x 1200

System Software:

OS X 10.9.3 (13D65) - Uptime: 0 days 3:36:27

Disk Information:

WDC WD6400AAKS-40H2B0 disk0 : (640,14 GB)

EFI (disk0s1) <not mounted>: 209,7 MB

Datenhirn (disk0s2) / [Startup]: 639,28 GB (106,91 GB free)

Recovery HD (disk0s3) <not mounted>: 650 MB

OPTIARC DVD RW AD-5670S

USB Information:

Apple Inc. Built-in iSight

Elgato EyeTV Hybrid

Apple Computer, Inc. IR Receiver

Apple Inc. BRCM2046 Hub

Apple Inc. Bluetooth USB Host Controller

FireWire Information:

WD My Book 800mbit - 800mbit max

disk1s1 (disk1s1) <not mounted>: 32 KB

Backup (disk1s3) /Volumes/Backup: 1 TB (7,03 GB free)

Gatekeeper:

Mac App Store and identified developers

Kernel Extensions:

[not loaded] com.Belcarra.iokit.USBLAN_netpart (2.0.2) Support

[not loaded] com.Belcarra.iokit.USBLAN_usbpart (2.0.2) Support

[loaded] com.Cycling74.driver.Soundflower (1.6.6 - SDK 10.6) Support

[not loaded] com.RemoteControl.USBLAN.panther (1.6.1) Support

[not loaded] com.RemoteControl.USBLAN.usbpart (2.0.6) Support

[not loaded] com.belcarra.iokit.netpart.panther (1.6.1) Support

[not loaded] com.belcarra.iokit.usbpart.panther (1.6.1) Support

[not loaded] com.elgato.driver.DontMatchAfaTech (1.1) Support

[not loaded] com.elgato.driver.DontMatchCinergy450 (1.1) Support

[not loaded] com.elgato.driver.DontMatchCinergyXS (1.1) Support

[not loaded] com.elgato.driver.DontMatchEmpia (1.1) Support

[not loaded] com.elgato.driver.DontMatchVoyager (1.1) Support

[not loaded] com.iospirit.driver.RBTSRPlugin (1.25 - SDK 10.9) Support

[loaded] com.iospirit.driver.rbiokithelper (1.25 - SDK 10.9) Support

[not loaded] com.markspace.missingsync.palmos.classicseize (1) Support

Launch Daemons:

[loaded] com.adobe.fpsaud.plist Support

[loaded] com.google.keystone.daemon.plist Support

[loaded] com.iospirit.candelair.daemon.plist Support

[loaded] com.iospirit.candelair.sync.plist Support

[loaded] com.oracle.java.Helper-Tool.plist Support

[loaded] com.oracle.java.JavaUpdateHelper.plist Support

Launch Agents:

[loaded] com.google.keystone.agent.plist Support

[loaded] com.oracle.java.Java-Updater.plist Support

User Launch Agents:

[failed] com.adobe.ARM.[...].plist Support

[running] com.amazon.cloud-player.plist Support

[loaded] com.facebook.videochat.[redacted].plist Support

[loaded] com.valvesoftware.steamclean.plist Support

[failed] com.vladalexa.MagicPrefs.plist Support

User Login Items:

EyeTV Helper

Mobile Mouse Server

smcFanControl

Colors for Hue

Spectacle

Internet Plug-ins:

GarminGpsControl: Version: 4.0.3.0 Release - SDK 10.6 Support

FlashPlayer-10.6: Version: 14.0.0.145 - SDK 10.6 Support

Flash Player: Version: 14.0.0.145 - SDK 10.6 Support

QuickTime Plugin: Version: 7.7.3

JavaAppletPlugin: Version: Java 7 Update 65 Check version

Default Browser: Version: 537 - SDK 10.9

Safari Extensions:

Evernote Web Clipper: Version: 6.1.3

Ultimate Status Bar: Version: 1.3

YoutubeWide: Version: 10.0

SafariRestore: Version: 6.1

Audio Plug-ins:

BluetoothAudioPlugIn: Version: 1.0 - SDK 10.9

AirPlay: Version: 2.0 - SDK 10.9

AppleAVBAudio: Version: 203.2 - SDK 10.9

iSightAudio: Version: 7.7.3 - SDK 10.9

iTunes Plug-ins:

Manifesto: Version: 2.1 Support

Quartz Composer Visualizer: Version: 1.4 - SDK 10.9

User Internet Plug-ins:

Unity Web Player: Version: UnityPlayer version 2.5.5f1 Support

3rd Party Preference Panes:

Candelair Support

Flash Player Support

Java Support

Launchpad-Control Support

Time Machine:

Skip System Files: NO

Auto backup: YES

Volumes being backed up:

Datenhirn: Disk size: 595.37 GB Disk used: 495.81 GB

Destinations:

Backup [Local] (Last used)

Total size: 931.39 GB

Total number of backups: 71

Oldest backup: 2013-05-01 06:02:18 +0000

Last backup: 2014-08-07 10:29:51 +0000

Size of backup disk: Too small

Backup size 931.39 GB < (Disk used 495.81 GB X 3)

Time Machine details may not be accurate.

All volumes being backed up may not be listed.

Top Processes by CPU:

9% WindowServer

5% Safari

3% PluginProcess

1% hidd

0% fontd

Top Processes by Memory:

279 MB mds_stores

238 MB com.apple.WebKit.WebContent

205 MB Safari

180 MB com.apple.IconServicesAgent

139 MB softwareupdated

Virtual Memory Information:

3.99 GB Free RAM

2.71 GB Active RAM

499 MB Inactive RAM

839 MB Wired RAM

1.31 GB Page-ins

0 B Page-outs

PS: I'm new to the Apple discussion board.