Da Du nicht so genau weißt, was Du installiert hast:
Lade doch mal bitte die Software EtreCheck, lass die laufen und poste die Ausgabe von "Configuration files:" bis "Time Machine:"
Ergebniss:
Hardware Information:
iMac (27-inch, Mid 2011)
iMac - model: iMac12,2
1 2.7 GHz Intel Core i5 CPU: 4 cores
16 GB RAM
Video Information:
AMD Radeon HD 6770M - VRAM: 512 MB
System Software:
OS X 10.9.2 (13C64) - Uptime: 0 days 3:0:6
Disk Information:
ST32000541AS disk0 : (2 TB)
EFI (disk0s1) <not mounted>: 209,7 MB
Macintosh HD (disk0s2) / [Startup]: 2 TB (117,07 GB free)
Recovery HD (disk0s3) <not mounted>: 650 MB
OPTIARC DVD RW AD-5690H
USB Information:
Western Digital Ext HDD 1021 3 TB
disk1s1 (disk1s1) <not mounted>: 209,7 MB
Time Machine-Backups (disk1s2) /Volumes/Time Machine-Backups: 3 TB (97,74 GB free)
Apple Internal Memory Card Reader
Apple Computer, Inc. IR Receiver
Apple Inc. FaceTime HD Camera (Built-in)
Apple, Inc. Keyboard Hub
Logitech USB-PS/2 Optical Mouse
Apple Inc. Apple Keyboard
Apple Inc. BRCM2046 Hub
Apple Inc. Bluetooth USB Host Controller
FireWire Information:
Thunderbolt Information:
Apple Inc. thunderbolt_bus
Kernel Extensions:
com.eltima.SyncMate.kext (0.2.5b15)
com.sophos.nke.swi (9.0.53 - SDK 10.

com.aladdin.kext.aksfridge (1.0.2)
com.sophos.kext.sav (9.0.53 - SDK 10.7)
Startup Items:
ChmodBPF: Path: /Library/StartupItems/ChmodBPF
ProTec6b: Path: /Library/StartupItems/ProTec6b
Launch Daemons:
[System] com.adobe.fpsaud.plist 3rd-Party support link
[System] com.adobe.SwitchBoard.plist 3rd-Party support link
[System] com.aladdin.aksusbd.plist 3rd-Party support link
[System] com.aladdin.hasplmd.plist 3rd-Party support link
[System] com.bresink.system.securityagent3a.plist 3rd-Party support link
[System] com.google.keystone.daemon.plist 3rd-Party support link
[System] com.microsoft.office.licensing.helper.plist 3rd-Party support link
[System] com.sophos.autoupdate.plist 3rd-Party support link
[System] com.sophos.configuration.plist 3rd-Party support link
[System] com.sophos.intercheck.plist 3rd-Party support link
[System] com.sophos.notification.plist 3rd-Party support link
[System] com.sophos.scan.plist 3rd-Party support link
[System] com.sophos.sxld.plist 3rd-Party support link
[System] com.sophos.webd.plist 3rd-Party support link
[System] com.xrite.device.xrdd.plist 3rd-Party support link
[System] rapiback.plist 3rd-Party support link
Launch Agents:
[System] com.adobe.AAM.Updater-1.0.plist 3rd-Party support link
[System] com.google.keystone.agent.plist 3rd-Party support link
[System] com.hp.messagecenter.launcher.plist 3rd-Party support link
[System] com.sophos.uiserver.plist 3rd-Party support link
[System] com.wacom.wacomtablet.plist 3rd-Party support link
[System] com.xrite.device.softwareupdate.plist 3rd-Party support link
[System] syncmateStarter.plist 3rd-Party support link
User Launch Agents:
[not loaded] com.adobe.AAM.Updater-1.0.plist 3rd-Party support link
[not loaded] com.adobe.ARM.[...].plist 3rd-Party support link
User Login Items:
i1ProfilerTray
iTunesHelper
MenuCalendarClock iCal
UltralinguaHotkey
SlidePad
DEVONthink Sorter
Internet Plug-ins:
WacomNetscape: Version: 2.1.0-1 - SDK 10.8 3rd-Party support link
Default Browser: Version: 537 - SDK 10.9
AdobeExManDetect: Version: AdobeExManDetect 1.1.0.0 - SDK 10.7 3rd-Party support link
WacomTabletPlugin: Version: WacomTabletPlugin 2.1.0.2 3rd-Party support link
AdobePDFViewerNPAPI: Version: 10.1.9 3rd-Party support link
FlashPlayer-10.6: Version: 13.0.0.201 - SDK 10.6 3rd-Party support link
Silverlight: Version: 5.1.10411.0 - SDK 10.6 3rd-Party support link
Flash Player: Version: 13.0.0.201 - SDK 10.6 3rd-Party support link
QuickTime Plugin: Version: 7.7.3
iPhotoPhotocast: Version: 7.0 - SDK 10.7
SharePointBrowserPlugin: Version: 14.0.0 3rd-Party support link
AdobePDFViewer: Version: 10.1.9 3rd-Party support link
JavaAppletPlugin: Version: 14.9.0 - SDK 10.7 Outdated! Update
Safari Extensions:
Clip to DEVONthink: Version: 1.2.2
1Password: Version: 4.1.0
CustomSearch: Version: 1.4
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:
Quartz Composer Visualizer: Version: 1.4 - SDK 10.9
User Internet Plug-ins:
CitrixOnlineWebDeploymentPlugin: Version: 1.0.105 3rd-Party support link
3rd Party Preference Panes:
Flash Player 3rd-Party support link
Growl 3rd-Party support link
MacFUSE (Tuxera) 3rd-Party support link
Perian 3rd-Party support link
WacomTablet 3rd-Party support link
Old Applications:
PTLens: Version: 1.5.3 - SDK 10.5 3rd-Party support link
QR-Generator: Version: 1.4 - SDK 10.0 3rd-Party support link
PTLensEdit: Version: 1.5.3 - SDK 10.5 3rd-Party support link
VLC: Version: 2.0.1 - SDK 10.5 3rd-Party support link
SLLauncher: Version: 1.0 - SDK 10.5 3rd-Party support link
/Library/Application Support/Microsoft/Silverlight/OutOfBrowser/SLLauncher.app
Epson Printer Utility 4: Version: 9.19 - SDK 10.5 3rd-Party support link
/Library/Printers/EPSON/InkjetPrinter2/Utility/UT4/Epson Printer Utility 4.app
i1Profiler: Version: 1.3.1 - SDK 10.5 3rd-Party support link
/Applications/i1Profiler/i1Profiler.app
dynamiclinkmanager: Version: 6.0.0 - SDK 10.5 3rd-Party support link
/Library/Application Support/Adobe/Common/dynamiclink/CS6/dynamiclinkmanager.app
dynamiclinkmediaserver: Version: 6.0.1 - SDK 10.5 3rd-Party support link
/Library/Application Support/Adobe/Common/dynamiclinkmediaserver/1.0/dynamiclinkmediaserver.app
FlexColor: Version: 4.8.13 - SDK 10.4 3rd-Party support link
/Applications/FlexColor 4.8.13/FlexColor.app
Time Machine:
Auto backup: YES
Volumes being backed up:
Macintosh HD: Disk size: 2 Disk used: 2
Destinations:
Time Machine-Backups [Local] (Last used)
Total size: 3
Total number of backups: 144
Oldest backup: 2011-09-29 04:20:47 +0000
Last backup: 2014-04-21 09:16:36 +0000
Size of backup disk: Too small
Backup size 3 < (Disk used 2 X 3)
Time Machine details may not be accurate.
All volumes being backed up may not be listed.
Top Processes by CPU:
1% EtreCheck
0% WindowServer
0% xrdd
0% SophosWebIntelligence
Top Processes by Memory:
442 MB mds_stores
213 MB SophosScanD
197 MB Safari
180 MB com.apple.IconServicesAgent
147 MB InterCheck
Virtual Memory Information:
7.71 GB Free RAM
3.63 GB Active RAM
3.08 GB Inactive RAM
1.57 GB Wired RAM
748 MB Page-ins
0 B Page-outs