Hoi Fred, hier het Etrecheck report:
Problem description:
Start-up time I-mac is more then 50 seconds, 27inch, model 2011, 3.4 Ghz Intel Core I7
16GB Memory 1333 Mhz DDR3
EtreCheck version: 2.2 (132)
Report generated 5/3/15, 11:54 AM
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Click the [Click for details] links for more information about that line.
Hardware Information: ℹ️
iMac (27-inch, Mid 2011) (Technical Specifications)
iMac - model: iMac12,2
1 3.4 GHz Intel Core i7 CPU: 4-core
16 GB RAM Upgradeable
BANK 0/DIMM0
4 GB DDR3 1333 MHz ok
BANK 1/DIMM0
4 GB DDR3 1333 MHz ok
BANK 0/DIMM1
4 GB DDR3 1333 MHz ok
BANK 1/DIMM1
4 GB DDR3 1333 MHz ok
Bluetooth: Old - Handoff/Airdrop2 not supported
Wireless: en1: 802.11 a/b/g/n
Video Information: ℹ️
AMD Radeon HD 6970M - VRAM: 1024 MB
iMac 2560 x 1440
System Software: ℹ️
OS X 10.10.3 (14D136) - Time since boot: 0:36:40
Disk Information: ℹ️
Hitachi HDS722020ALA330 disk0 : (2 TB)
EFI (disk0s1) <not mounted> : 210 MB
Macintosh HD1 (disk0s2) / : 2.00 TB (1.92 TB free)
Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
OPTIARC DVD RW AD-5680H
USB Information: ℹ️
Apple Inc. FaceTime HD Camera (Built-in)
Tablet PTK-440
Apple Inc. BRCM2046 Hub
Apple Inc. Bluetooth USB Host Controller
Apple, Inc. Keyboard Hub
Apple, Inc Apple Keyboard
Apple Internal Memory Card Reader
Apple Computer, Inc. IR Receiver
Thunderbolt Information: ℹ️
Apple Inc. thunderbolt_bus
Configuration files: ℹ️
/etc/hosts - Count: 90
Gatekeeper: ℹ️
Mac App Store and identified developers
Kernel Extensions: ℹ️
/System/Library/Extensions
[not loaded] com.wacom.kext.wacomtablet (6.1.5) [Click for support]
Launch Agents: ℹ️
[not loaded] com.adobe.AAM.Updater-1.0.plist [Click for support]
[running] com.adobe.AdobeCreativeCloud.plist [Click for support]
[loaded] com.adobe.CS5ServiceManager.plist [Click for support]
[running] com.wacom.wacomtablet.plist [Click for support]
Launch Daemons: ℹ️
[running] com.adobe.adobeupdatedaemon.plist [Click for support]
[loaded] com.adobe.fpsaud.plist [Click for support]
[loaded] com.adobe.SwitchBoard.plist [Click for support]
[loaded] com.macpaw.CleanMyMac3.Agent.plist [Click for support]
User Launch Agents: ℹ️
[loaded] com.adobe.AAM.Updater-1.0.plist [Click for support]
[loaded] com.macpaw.CleanMyMac3.Scheduler.plist [Click for support]
[running] com.spotify.webhelper.plist [Click for support]
[not loaded] info.lokiware.attachmenttamer.cleanup.plist [Click for support]
User Login Items: ℹ️
CleanMyMac 3 Menu Programma (/Applications/CleanMyMac 3.app/Contents/MacOS/CleanMyMac 3 Menu.app)
Internet Plug-ins: ℹ️
AdobeExManDetect: Version: AdobeExManDetect 1.1.0.0 - SDK 10.7 [Click for support]
FlashPlayer-10.6: Version: 17.0.0.169 - SDK 10.6 [Click for support]
QuickTime Plugin: Version: 7.7.3
Flash Player: Version: 17.0.0.169 - SDK 10.6 [Click for support]
AdobeAAMDetect: Version: 3.0.0.0 - SDK 10.9 [Click for support]
Default Browser: Version: 600 - SDK 10.10
WacomNetscape: Version: 1.1.0-5 [Click for support]
WacomSafari: Version: 1.1.0-5 [Click for support]
Silverlight: Version: 5.1.30317.0 - SDK 10.6 [Click for support]
JavaAppletPlugin: Version: 15.0.0 - SDK 10.10 Check version
3rd Party Preference Panes: ℹ️
Flash Player [Click for support]
Growl [Click for support]
Time Machine: ℹ️
Time Machine not configured!
Top Processes by CPU: ℹ️
11% launchd
3% WindowServer
2% fontd
1% WacomTabletDriver
0% Safari
Top Processes by Memory: ℹ️
1.01 GB kernel_task
623 MB com.apple.WebKit.WebContent(4)
164 MB Mail
147 MB mds_stores
115 MB iconservicesagent(2)
Virtual Memory Information: ℹ️
11.00 GB Free RAM
4.67 GB Used RAM
0 B Swap Used
Diagnostics Information: ℹ️
May 3, 2015, 11:16:46 AM Self test - passed