Guten Abend,
leider habe ich nach dem letzten Update der Beta dieses Bild nach dem Booten:


EtreCheck sagt das:
EtreCheck version: 2.4.1 (137)
Report generated 8/27/15, 11:22 PM
Download EtreCheck from http://etresoft.com/etrecheck

Click the [Click for support] links for help with non-Apple products.
Click the [Click for details] links for more information about that line.

Hardware Information: (What does this mean?)
MacBook (13-inch, Aluminum, Late 2008) (Technical Specifications)
MacBook - model: MacBook5,1
1 2,4 GHz Intel Core 2 Duo CPU: 2-core
8 GB RAM Upgradeable
BANK 0/DIMM0
4 GB DDR3 1067 MHz ok
BANK 0/DIMM1
4 GB DDR3 1067 MHz ok
Bluetooth: Old - Handoff/Airdrop2 not supported
Wireless: en1: 802.11 a/b/g/n
Battery: Health = Normal - Cycle count = 68 - SN = W030402ED6GOA

Video Information: (What does this mean?)
NVIDIA GeForce 9400M - VRAM: 256 MB

System Software: (What does this mean?)
OS X 10.11 (15A262e) - Time since boot: less than an hour

Disk Information: (What does this mean?)
ADATA SSD S510 120GB disk0 : (120,03 GB) (Solid State - TRIM: No)
EFI (disk0s1) <not mounted> : 210 MB
WH.MB-SSD (disk0s2) / : 119.17 GB (28.95 GB free)
Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB

ST1000LM014-1EJ164 disk1 : (1 TB) (Rotational)
EFI (disk1s1) <not mounted> : 210 MB
W-H-Macbook (disk1s2) /Volumes/W-H-Macbook : 999.86 GB (58.05 GB free)

USB Information: (What does this mean?)
Apple Inc. Built-in iSight
Apple Inc. BRCM2046 Hub
Apple Inc. Bluetooth USB Host Controller
Apple, Inc. Apple Internal Keyboard / Trackpad
Apple Computer, Inc. IR Receiver

Gatekeeper: (What does this mean?)
Mac App Store and identified developers

Kernel Extensions: (What does this mean?)
/Library/Application Support/Roxio
[not loaded] com.roxio.TDIXController (1.2) [Click for support]

/Library/Extensions
[not loaded] com.squirrels.airparrot.framebuffer (3 - SDK 10.8) [Click for support]
[not loaded] com.squirrels.driver.AirParrotSpeakers (1.8 - SDK 10.8) [Click for support]
[not loaded] org.virtualbox.kext.VBoxDrv (2.2.0) [Click for support]
[not loaded] org.virtualbox.kext.VBoxNetAdp (4.1.18) [Click for support]
[not loaded] org.virtualbox.kext.VBoxNetFlt (4.1.18) [Click for support]
[not loaded] org.virtualbox.kext.VBoxUSB (2.2.0) [Click for support]

/System/Library/Extensions
[not loaded] com.FTDI.driver.FTDIUSBSerialDriver (2.2.18 - SDK 10.6) [Click for support]
[not loaded] com.ZTE.driver.ZTEUSBCDCACMData (1.3.6) [Click for support]
[not loaded] com.ZTE.driver.ZTEUSBMassStorageFilter (1.3.6) [Click for support]
[not loaded] com.cisco.nke.ipsec (2.0.1) [Click for support]
[not loaded] com.elgato.driver.DontMatchAfaTech (1.1) [Click for support]
[not loaded] com.elgato.driver.DontMatchCinergy450 (1.1) [Click for support]
[not loaded] com.elgato.driver.DontMatchCinergyXS (1.1) [Click for support]
[not loaded] com.elgato.driver.DontMatchEmpia (1.1) [Click for support]
[not loaded] com.elgato.driver.DontMatchVoyager (1.1) [Click for support]
[not loaded] com.ximeta.driver.NDASFamily (211) [Click for support]
[not loaded] com.ximeta.nke.netlpx (203) [Click for support]

Problem System Launch Daemons: (What does this mean?)
[failed] com.apple.stackshot.plist
[failed] com.apple.ucupdate.plist
[failed] com.apple.watchdogd.plist

Launch Agents: (What does this mean?)
[not loaded] com.adobe.AAM.Updater-1.0.plist [Click for support]
[not loaded] com.hp.help.tocgenerator.plist [Click for support]
[not loaded] com.oracle.java.Java-Updater.plist [Click for support]
[not loaded] org.macosforge.xquartz.startx.plist [Click for support]

Launch Daemons: (What does this mean?)
[not loaded] cn.com.zte.PPPMonitor.plist [Click for support]
[not loaded] com.adobe.fpsaud.plist [Click for support]
[not loaded] com.barebones.authd.plist [Click for support]
[not loaded] com.bombich.ccc.plist [Click for support]
[not loaded] com.bombich.ccchelper.plist [Click for support]
[not loaded] com.bresink.system.securityagent3a.plist [Click for support]
[not loaded] com.microsoft.office.licensing.helper.plist [Click for support]
[not loaded] com.oracle.java.Helper-Tool.plist [Click for support]
[not loaded] com.oracle.java.JavaUpdateHelper.plist [Click for support]
[not loaded] com.regularrateandrhythm.rowmotehelperaide.plist [Click for support]
[not loaded] com.skype.skypeinstaller.plist [Click for support]
[not loaded] com.ximeta.NDASService.plist [Click for support]
[not loaded] de.meilenstein.MSTFirstRunInstaller.plist [Click for support]
[not loaded] de.meilenstein.MSTHostPreferences.plist [Click for support]
[not loaded] de.meilenstein.supportfiles.plist [Click for support]
[not loaded] org.macosforge.xquartz.privileged_startx.plist [Click for support]

User Launch Agents: (What does this mean?)
[not loaded] .dat0102.010 (hidden) [Click for support]
/usr/bin/osascript /usr/bin/osascript osascript -e tell application "Folder Actions Dispatcher" to tick
[not loaded] com.adobe.ARM.[...].plist [Click for support]
[not loaded] com.adobe.ARM.[...].plist [Click for support]
[not loaded] com.adobe.ARM.[...].plist [Click for support]
[not loaded] com.google.keystone.agent.plist [Click for support]
[not loaded] com.nero.HSMMonitor.plist [Click for support]
[not loaded] org.virtualbox.vboxwebsrv.plist [Click for support]
[not loaded] uk.co.markallan.clamxav.freshclam.plist [Click for support]

User Login Items: (What does this mean?)
CheatSheet Programm (/Applications/CheatSheet.app)
SMARTReporter Programm (/Applications/SMARTReporter.app)
Moom Programm (/Applications/Moom.app)
Auto Mute Programm (/Applications/Auto Mute.app)
Dropbox Programm (/Applications/Dropbox.app)
Cinch Programm (/Applications/Cinch.app)
Canon IJ Network Scanner Selector EX Programm Hidden (/Applications/Canon Utilities/IJ Network Scanner Selector EX/Canon IJ Network Scanner Selector EX.app)
Rowmote Helper Programm (/Applications/Rowmote Helper.app)
SpeechSynthesisServer Programm (/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/SpeechSynthesis.framework/Versions/A/SpeechSynthesisServer.app)
TheTube Helper Programm Hidden (/Applications/TheTube.app/Contents/SharedSupport/TheTube Helper.app)
HP Product Research UNKNOWN (missing value)

Internet Plug-ins: (What does this mean?)
Google Earth Web Plug-in: Version: 5.2 [Click for support]
Default Browser: Version: 601 - SDK 10.11
Flip4Mac WMV Plugin: Version: 3.2.0.16 - SDK 10.8 [Click for support]
OfficeLiveBrowserPlugin: Version: 12.3.6 [Click for support]
RealPlayer Plugin: Version: Unknown
AdobeAAMDetect: Version: AdobeAAMDetect 1.0.0.0 - SDK 10.6 [Click for support]
FlashPlayer-10.6: Version: 18.0.0.232 - SDK 10.6 [Click for support]
Silverlight: Version: 5.1.40416.0 - SDK 10.6 [Click for support]
QuickTime Plugin: Version: 7.7.3
Flash Player: Version: 18.0.0.232 - SDK 10.6 [Click for support]
iPhotoPhotocast: Version: 7.0
SharePointBrowserPlugin: Version: 14.2.2 - SDK 10.6 [Click for support]
EPPEX Plugin: Version: 4.1.0.0 [Click for support]
ContentUploaderPlugin: Version: 1.2 [Click for support]
JavaAppletPlugin: Version: Java 8 Update 51 Check version

Safari Extensions: (What does this mean?)
Translate
Wettervorschau
Wettervorschau

3rd Party Preference Panes: (What does this mean?)
Flash Player [Click for support]
Flip4Mac WMV [Click for support]
Growl [Click for support]
Java [Click for support]
MacFUSE [Click for support]
MediaCentral [Click for support]
Perian [Click for support]
RCDefaultApp
ArcanaStartupSound [Click for support]
Tuxera NTFS [Click for support]

Time Machine: (What does this mean?)
Skip System Files: NO
Mobile backups: ON
Auto backup: YES
Volumes being backed up:
WH.MB-SSD: Disk size: 119.17 GB Disk used: 90.23 GB
Destinations:
WH_CCC [Local]
Total size: 999.86 GB
Total number of backups: 5
Oldest backup: 2015-07-16 02:08:31 +0000
Last backup: 2015-07-16 06:20:10 +0000
Size of backup disk: Excellent
Backup size 999.86 GB > (Disk size 119.17 GB X 3)
WH-Backup [Local]
Total size: 2.00 TB
Total number of backups: 28
Oldest backup: 2014-08-22 06:08:06 +0000
Last backup: 2015-08-16 19:55:56 +0000
Size of backup disk: Excellent
Backup size 2.00 TB > (Disk size 119.17 GB X 3)

Top Processes by CPU: (What does this mean?)
14% WindowServer
13% cloudphotosd
6% com.apple.WebKit.WebContent(3)
4% Safari
3% com.apple.WebKit.Networking

Top Processes by Memory: (What does this mean?)
603 MB kernel_task
393 MB com.apple.WebKit.WebContent(3)
213 MB Safari
213 MB Photos
172 MB WindowServer

Virtual Memory Information: (What does this mean?)
547 MB Free RAM
7.71 GB Used RAM (2.41 GB Cached)
124 MB Swap Used

Diagnostics Information: (What does this mean?)
Aug 27, 2015, 10:52:00 PM Self test - passed
Aug 27, 2015, 07:15:15 PM ~/Library/Logs/DiagnosticReports/CalendarAgent_2015-08-27-191515_[redacted].crash
Aug 27, 2015, 07:15:00 PM ~/Library/Logs/DiagnosticReports/cloudd_2015-08-27-191500_[redacted].crash
Aug 27, 2015, 06:42:41 PM ~/Library/Logs/DiagnosticReports/cloudphotosd_2015-08-27-184241_[redacted].crash
Aug 27, 2015, 02:37:52 PM ~/Library/Logs/DiagnosticReports/QuickLookSatellite_2015-08-27-143752_[redacted].crash
Aug 27, 2015, 02:37:50 PM ~/Library/Logs/DiagnosticReports/QuickLookSatellite_2015-08-27-143750_[redacted].crash
Aug 27, 2015, 02:07:58 PM ~/Library/Logs/DiagnosticReports/QuickLookSatellite_2015-08-27-140758_[redacted].crash
Aug 27, 2015, 02:07:49 PM ~/Library/Logs/DiagnosticReports/QuickLookSatellite_2015-08-27-140749_[redacted].crash
Aug 27, 2015, 02:07:47 PM ~/Library/Logs/DiagnosticReports/QuickLookSatellite_2015-08-27-140747_[redacted].crash
Aug 27, 2015, 01:57:38 PM ~/Library/Logs/DiagnosticReports/Aperture_2015-08-27-135738_[redacted].crash
Aug 27, 2015, 01:29:53 PM ~/Library/Logs/DiagnosticReports/QuickLookSatellite_2015-08-27-132953_[redacted].crash
Aug 26, 2015, 07:01:42 PM ~/Library/Logs/DiagnosticReports/systemsoundserverd_2015-08-26-190142_[redacted].crash
Aug 26, 2015, 07:01:29 PM ~/Library/Logs/DiagnosticReports/systemsoundserverd_2015-08-26-190129_[redacted].crash
Aug 26, 2015, 05:00:35 PM ~/Library/Logs/DiagnosticReports/systemsoundserverd_2015-08-26-170035_[redacted].crash
Aug 25, 2015, 06:59:52 PM ~/Library/Logs/DiagnosticReports/Pages_2015-08-25-185952_[redacted].crash
Aug 25, 2015, 03:20:47 PM ~/Library/Logs/DiagnosticReports/Photos_2015-08-25-152047_[redacted].crash

Standard users cannot read /Library/Logs/DiagnosticReports.
Run as an administrator account to see more information.
======Ende==== liste EtreCheck

Rechner startet im "Sicheren Modus" ( +
PR-Ram reset + Rechte reparieren ausgeführt - aber ergebnislos.

Gibt es einen Tipp für mich.
Oder muss ich neu installieren?

Das Problem wird durch VirtualBox ausgelöst. Die zugehörigen Treiber müssen entfernt werden.

+1

Bzw. sollten ersetzt werden durch jene einer aktuellen VirtualBox-Version. Wenn ich anhand obig genannter Versionsnummern der zugehörigen kexts richtig lese und mich da nicht irre, sind die Kernel-Extensions zugehörig zu Virtualbox 4.1.18, und die ist ja uralt (released 20.06.2012). Erstens hat sich da der Platz verändert, wo die zugehörigen Kernel-Extensions liegen (statt in /Library/Extensions inzwischen in /Library/Application Support/VirtualBox), und zweitens ist das aktuelle VirtualBox bereits in der Version 5.0.2 angelangt. Welche laut Changelog inzwischen weitgehend oder gar vollständig 10.11-ready gemacht ist.

Evtl. noch irgendwelche nicht aktuelle oder bedenkliche Software im System vorhanden, die in gleichem Zuge auch mal auf den aktuellen Stand gebracht werden oder gar entsorgt werden könnte (schon, um weitere Probleme zu vermeiden)?

Vielen Dank!
Startet wieder sauber durch.

AirParrot ist auch ein Kandidat für Ärger, da auch auf die Version achten.

Bei sowas bzw. einem Betasystem immer alle Fremdsoftware auf Aktualität und Kompatibilität prüfen. Und zwar bevor man sich sowas installiert
Für gewöhnlich schreiben die Hersteller auf ihren Webseiten was kompatibel ist und was nicht.
Wer das also nicht vorher prüft sollte die Finger von Betasystemen lassen

Hab AirParrot auch das Update gegönnt.

Danke!