Here's the EtreCheck report for both Airbooks: "Geo" has the problem with the 10.11.1 update, "Eva" has no problem.
Thanks for your help.
Geo:
EtreCheck version: 2.6.1 (221)
Report generated 28.10.15 15:25
Runtime 2:09
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 Air
[Click for Technical Specifications]
[Click for User Guide]
MacBook Air - model: MacBookAir6,1
1 1.7 GHz Intel Core i7 CPU: 2-core
8 GB RAM Not upgradeable
BANK 0/DIMM0
4 GB DDR3 1600 MHz ok
BANK 1/DIMM0
4 GB DDR3 1600 MHz ok
Bluetooth: Good - Handoff/Airdrop2 supported
Wireless: en0: 802.11 a/b/g/n/ac
Battery: Health = Normal - Cycle count = 73 - SN = D863483018WF909A7
Video Information: (What does this mean?)
Intel HD Graphics 5000
Color LCD 1366 x 768
System Software: (What does this mean?)
OS X El Capitan 10.11 (15A284) - Time since boot: about one day
Disk Information: (What does this mean?)
APPLE SSD TS0256F disk0 : (251 GB) (Solid State - TRIM: Yes)
EFI (disk0s1) <not mounted> : 210 MB
Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
eDrive (disk0s4) <not mounted> : 15.87 GB
[redacted] (disk1) / : 217.37 GB (23.12 GB free)
Core Storage: disk0s2 217.74 GB Online
USB Information: (What does this mean?)
Apple Inc. BRCM20702 Hub
Apple Inc. Bluetooth USB Host Controller
Kensington Kensington Slimblade Trackball
Thunderbolt Information: (What does this mean?)
Apple Inc. thunderbolt_bus
Apple Inc. Thunderbolt to FireWire Adapter
Gatekeeper: (What does this mean?)
Mac App Store and identified developers
Kernel Extensions: (What does this mean?)
/Applications/Checkmate.app
[not loaded] com.micromat.driver.SPDKernel (1 - SDK 10.8) [Click for support]
/Applications/Utilities/DiskWarrior.app
[not loaded] com.alsoft.Preview (5 - SDK 10.5) [Click for support]
/Applications/Utilities/TechTool Pro 8.app
[not loaded] com.micromat.driver.spdKernel (1 - SDK 10.11) [Click for support]
[not loaded] com.micromat.driver.spdKernel-10-8 (1 - SDK 10.11) [Click for support]
/Library/Application Support/Avast/components/fileshield/unsigned
[loaded] com.avast.AvastFileShield (2.1.0 - SDK 10.10) [Click for support]
/Library/Application Support/Avast/components/proxy/unsigned
[loaded] com.avast.PacketForwarder (2.0 - SDK 10.10) [Click for support]
/Library/Extensions
[not loaded] com.Logitech.Control Center.HID Driver (3.9.1 - SDK 10.8) [Click for support]
[not loaded] com.Logitech.Unifying.HID Driver (1.3.1 - SDK 10.8) [Click for support]
[loaded] com.kensington.trackballworks.driver (1.2.1 - SDK 10.8) [Click for support]
[loaded] com.squirrels.driver.AirParrotSpeakers (1.8 - SDK 10.8) [Click for support]
/System/Library/Extensions
[not loaded] com.NovatelWireless.driver.NovatelWirelessUSBCDCECMControl (3.0.13) [Click for support]
[not loaded] com.NovatelWireless.driver.NovatelWirelessUSBCDCECMData (3.0.13) [Click for support]
[not loaded] com.ZTE.driver.ZTEUSBCDCACMData (1.3.8) [Click for support]
[not loaded] com.ZTE.driver.ZTEUSBMassStorageFilter (1.3.8) [Click for support]
[not loaded] com.novamedia.driver.IceraUSB_MSD_Bypass (1.3.0) [Click for support]
[not loaded] com.novatelwireless.driver.3G (3.0.13) [Click for support]
[not loaded] com.novatelwireless.driver.DisableAutoInstall (3.0.13) [Click for support]
[not loaded] com.option.driver.Option72 (2.15.0) [Click for support]
[not loaded] com.option.driver.OptionHS (3.26.0) [Click for support]
[not loaded] com.option.driver.OptionMSD (1.21.0) [Click for support]
[not loaded] com.option.driver.OptionQC (1.11.0) [Click for support]
[not loaded] com.rim.driver.BlackBerryUSBDriverInt (0.0.39) [Click for support]
[not loaded] com.rim.driver.BlackBerryUSBDriverVSP (0.0.45) [Click for support]
[not loaded] com.tomtom.driver.UsbEthernetGadget (1.0.0d1) [Click for support]
[not loaded] com.vodafone.driver (3.0.9) [Click for support]
[not loaded] com.xerox.officeprinting.PrinterSpecificMerge (1.3.0) [Click for support]
[not loaded] com.zte.driver.cdc_ecm_qmi (1.0.1) [Click for support]
[not loaded] com.zte.driver.cdc_usb_bus (1.0.1) [Click for support]
[not loaded] de.novamedia.driver.NMLGEDriver (3.2.10) [Click for support]
[not loaded] de.novamedia.driver.NMSamsung (0.0.2) [Click for support]
[not loaded] de.novamedia.driver.NMSmartplugSCSIDevice (1.0.1) [Click for support]
[not loaded] de.novamedia.oem.vodafone.vtp.huawei.cdc (0.0.2) [Click for support]
/System/Library/Extensions/NMHuaweiPhonesVTPCDC_106.kext/Contents/PlugIns
[not loaded] de.novamedia.driver.NMUSBCDCACMControl (3.2.12) [Click for support]
/System/Library/Extensions/NMSamsungDriver_106.kext/Contents/PlugIns
[not loaded] de.novamedia.driver.NMUSBCDCACMData (3.2.12) [Click for support]
/System/Library/Extensions/NovatelWireless3G.kext/Contents/PlugIns
[not loaded] com.novatelwireless.driver.3GData (3.0.13) [Click for support]
/System/Library/Extensions/Vodafone.kext/Contents/PlugIns
[not loaded] com.vodafone.driver.Data (3.0.9) [Click for support]
Startup Items: (What does this mean?)
Qmaster: Path: /Library/StartupItems/Qmaster
Startup items are obsolete in OS X Yosemite
Launch Agents: (What does this mean?)
[running] com.Logitech.Control Center.Daemon.plist [Click for support]
[running] com.avast.update-agent.plist [Click for support]
[loaded] com.avast.userinit.plist [Click for support]
[running] com.brother.LOGINserver.plist [Click for support]
[loaded] com.google.keystone.agent.plist [Click for support]
[running] com.micromat.CheckmateAgent.plist [Click for support]
[running] com.micromat.TechToolProAgent.plist [Click for support]
[loaded] com.oracle.java.Java-Updater.plist [Click for support]
[running] net.culater.SIMBL.Agent.plist [Click for support]
Launch Daemons: (What does this mean?)
[loaded] com.adobe.fpsaud.plist [Click for support]
[loaded] com.avast.init.plist [Click for support]
[loaded] com.avast.uninstall.plist [Click for support]
[loaded] com.avast.update.plist [Click for support]
[running] com.cleverfiles.cfbackd.plist [Click for support]
[loaded] com.google.keystone.daemon.plist [Click for support]
[loaded] com.macpaw.CleanMyMac3.Agent.plist [Click for support]
[running] com.micromat.CheckmateIdleDaemon.plist [Click for support]
[loaded] com.micromat.CheckmateWorkerDaemon.plist [Click for support]
[running] com.micromat.TechToolProDaemon.plist [Click for support]
[loaded] com.microsoft.office.licensing.helper.plist [Click for support]
[loaded] com.oracle.java.Helper-Tool.plist [Click for support]
[loaded] com.teamviewer.Helper.plist [Click for support]
User Launch Agents: (What does this mean?)
[loaded] com.adobe.ARM.[...].plist [Click for support]
[running] com.akamai.single-user-client.plist [Click for support]
[running] com.amazon.music.plist [Click for support]
[loaded] com.avast.home.userinit.plist [Click for support]
[loaded] com.macpaw.CleanMyMac3.Scheduler.plist [Click for support]
[loaded] com.valvesoftware.steamclean.plist [Click for support]
User Login Items: (What does this mean?)
PopChar Application (/Applications/PopChar.app)
Dropbox Application (/Applications/Dropbox.app)
iClip Application (/Applications/iClip.app)
TrackballWorksHelper Application (/Library/PreferencePanes/TrackballWorks.prefPane/Contents/Resources/TrackballW orksHelper.app)
DEVONagent Lite Application (/Applications/DEVONagent Lite.app)
Fantastical Application (/Applications/Fantastical Æ’/Fantastical.app)
MacUpdate Desktop Application Hidden (/Applications/MacUpdate Desktop.app)
HPEventHandler UNKNOWN (missing value)
Other Apps: (What does this mean?)
[running] 2BUA8C4S2C.com.agilebits.onepassword4-helper
[running] com.apple.xpc.launchd.oneshot.0x10000004.EtreCheck
[loaded] com.avast.account
[loaded] com.avast.crashreport
[running] com.avast.daemon
[running] com.avast.fileshield
[running] com.avast.helper
[running] com.avast.proxy
[running] com.avast.service
[running] com.brother.utility.NETserver.97952
[running] com.brother.utility.USBserver.8992
[running] com.flexibits.fantastical.51232
[running] com.getdropbox.dropbox.49632
[running] com.irradiatedsoftware.iClip.56992
[running] com.kensington.trackballworks.helper.116832
[running] com.macility.popchar3.68832
[running] com.macupdate.desktop6.61472
[running] com.vanprosolutions.BwanaDik.2272
[loaded] com.vanprosolutions.BwanaDikLauncher
Internet Plug-ins: (What does this mean?)
AdobePDFViewerNPAPI: Version: 11.0.13 - SDK 10.6 [Click for support]
Flash Player: Version: 19.0.0.226 - SDK 10.6 [Click for support]
AdobePDFViewer: Version: 11.0.13 - SDK 10.6 [Click for support]
ebrary Reader: Version: 2.10 - 12/12/06 [Click for support]
iPhotoPhotocast: Version: 7.0
Loki: Version: 3.4.2.20 [Click for support]
QuickTime Plugin: Version: 7.7.3
FlashPlayer-10.6: Version: 19.0.0.226 - SDK 10.6 [Click for support]
CitrixICAClientPlugIn: Version: 11.2.0 [Click for support]
PandoWebInst: Version: 1.0 [Click for support]
GarminGpsControl: Version: 4.0.4.0 Release - SDK 10.6 [Click for support]
DirectorShockwave: Version: 12.0.5r146 - SDK 10.6 [Click for support]
VLC Plugin: Version: 2.2.1 [Click for support]
CANONiMAGEGATEWAYDL: Version: 2.0.1.10 [Click for support]
CANONiMAGEGATEWAYLI: Version: 2.0.1.6 [Click for support]
Silverlight: Version: 5.1.40728.0 - SDK 10.6 [Click for support]
Google Earth Web Plug-in: Version: 7.1 [Click for support]
Default Browser: Version: 601 - SDK 10.11
Flip4Mac WMV Plugin: Version: 3.3.7.2 - SDK 10.7 [Click for support]
SharePointBrowserPlugin: Version: 14.5.7 - SDK 10.6 [Click for support]
JavaAppletPlugin: Version: Java 8 Update 65 build 17 Check version
OfficeLiveBrowserPlugin: Version: 12.3.6 [Click for support]
User internet Plug-ins: (What does this mean?)
Unity Player: Version: UnityPlayer version 1.5.0 [Click for support]
GoogleOneClickPlugin: Version: Unknown
Google Earth Web Plug-in: Version: 7.1 [Click for support]
RealPlayer Plugin: Version: Unknown [Click for support]
Safari Extensions: (What does this mean?)
1Password
Adblock Plus
Evernote Web Clipper
Translate
Audio Plug-ins: (What does this mean?)
DVCPROHDAudio: Version: 1.0
3rd Party Preference Panes: (What does this mean?)
Akamai NetSession Preferences [Click for support]
Citrix Online Plug-in [Click for support]
FinderPop [Click for support]
Flash Player [Click for support]
Flip4Mac WMV [Click for support]
Java [Click for support]
TrackballWorks [Click for support]
Logitech Control Center [Click for support]
MouseLocator [Click for support]
mp4vDecoderPane [Click for support]
Perian [Click for support]
TechTool Protection [Click for support]
Time Machine: (What does this mean?)
Skip System Files: NO
Mobile backups: ON
Auto backup: YES
Volumes being backed up:
Geo's AirBook: Disk size: 217.37 GB Disk used: 194.25 GB
Destinations:
Data [Network]
Total size: 2.00 TB
Total number of backups: 132
Oldest backup: 13.12.12 14:42
Last backup: 28.10.15 14:26
Size of backup disk: Excellent
Backup size 2.00 TB > (Disk size 217.37 GB X 3)
Top Processes by CPU: (What does this mean?)
4% WindowServer
2% fontd
1% mdworker(19)
0% helpd
0% iClip
Top Processes by Memory: (What does this mean?)
752 MB kernel_task
459 MB softwareupdated
279 MB mdworker(19)
229 MB MacUpdate Desktop
172 MB mds_stores
Virtual Memory Information: (What does this mean?)
1.12 GB Free RAM
6.88 GB Used RAM (3.48 GB Cached)
0 B Swap Used
Diagnostics Information: (What does this mean?)
Oct 27, 2015, 09:54:52 AM Self test - passed
Oct 27, 2015, 09:43:59 AM /Library/Logs/DiagnosticReports/mdworker_2015-10-27-094359_[redacted].crash
Oct 27, 2015, 09:43:48 AM /Library/Logs/DiagnosticReports/mdworker_2015-10-27-094348_[redacted].crash
Oct 27, 2015, 09:43:47 AM /Library/Logs/DiagnosticReports/mdworker_2015-10-27-094347_[redacted].crash
Oct 26, 2015, 11:15:24 AM /Library/Logs/DiagnosticReports/mdworker_2015-10-26-111524_[redacted].crash
Oct 26, 2015, 11:14:58 AM /Library/Logs/DiagnosticReports/mdworker_2015-10-26-111458_[redacted].crash
Oct 26, 2015, 11:14:39 AM /Library/Logs/DiagnosticReports/mdworker_2015-10-26-111439_[redacted].crash
Oct 26, 2015, 11:14:29 AM /Library/Logs/DiagnosticReports/mdworker_2015-10-26-111429_[redacted].crash
Oct 26, 2015, 11:14:28 AM /Library/Logs/DiagnosticReports/mdworker_2015-10-26-111428_[redacted].crash
Oct 26, 2015, 11:14:19 AM /Library/Logs/DiagnosticReports/mdworker_2015-10-26-111419_[redacted].crash
Oct 26, 2015, 11:14:18 AM /Library/Logs/DiagnosticReports/mdworker_2015-10-26-111418_[redacted].crash
Oct 26, 2015, 11:14:09 AM /Library/Logs/DiagnosticReports/mdworker_2015-10-26-111409_[redacted].crash
Oct 26, 2015, 11:14:08 AM /Library/Logs/DiagnosticReports/mdworker_2015-10-26-111408_[redacted].crash
Oct 26, 2015, 11:14:05 AM /Library/Logs/DiagnosticReports/mdworker_2015-10-26-111405_[redacted].crash
Oct 26, 2015, 11:14:04 AM /Library/Logs/DiagnosticReports/mdworker_2015-10-26-111404_[redacted].crash
Oct 26, 2015, 11:13:49 AM /Library/Logs/DiagnosticReports/mdworker_2015-10-26-111349_[redacted].crash
________________________________________________________________________________ ______________
Eva:
EtreCheck version: 2.6.1 (221)
Report generated 28.10.15, 15:28
Runtime 1:58
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 Air (11-inch, Mid 2012)
[Click for Technical Specifications]
[Click for User Guide]
MacBook Air - model: MacBookAir5,1
1 2 GHz Intel Core i7 CPU: 2-core
8 GB RAM Not upgradeable
BANK 0/DIMM0
4 GB DDR3 1600 MHz ok
BANK 1/DIMM0
4 GB DDR3 1600 MHz ok
Bluetooth: Good - Handoff/Airdrop2 supported
Wireless: en0: 802.11 a/b/g/n
Battery: Health = Normal - Cycle count = 118 - SN = C012373040WDKRVA0
Video Information: (What does this mean?)
Intel HD Graphics 4000
Color LCD 1366 x 768
System Software: (What does this mean?)
OS X El Capitan 10.11.1 (15B42) - Time since boot: about 3 days
Disk Information: (What does this mean?)
APPLE SSD SM256E disk0 : (251 GB) (Solid State - TRIM: Yes)
EFI (disk0s1) <not mounted> : 210 MB
Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
eDrive (disk0s4) <not mounted> : 15.87 GB
Eva's AirBook (disk1) / : 233.23 GB (111.53 GB free)
Core Storage: disk0s2 233.60 GB Online
USB Information: (What does this mean?)
Apple Inc. FaceTime HD Camera (Built-in)
Apple Inc. Apple Internal Keyboard / Trackpad
Apple Inc. BRCM20702 Hub
Apple Inc. Bluetooth USB Host Controller
Thunderbolt Information: (What does this mean?)
Apple Inc. thunderbolt_bus
Gatekeeper: (What does this mean?)
Mac App Store and identified developers
Kernel Extensions: (What does this mean?)
/Applications/Utilities/DiskWarrior.app
[not loaded] com.alsoft.Preview (4.4) [Click for support]
/Applications/Utilities/TechTool Pro 8.app
[not loaded] com.micromat.driver.spdKernel (1 - SDK 10.11) [Click for support]
[not loaded] com.micromat.driver.spdKernel-10-8 (1 - SDK 10.11) [Click for support]
/Library/Application Support/Avast/components/fileshield/unsigned
[loaded] com.avast.AvastFileShield (2.1.0 - SDK 10.10) [Click for support]
/Library/Application Support/Avast/components/proxy/unsigned
[loaded] com.avast.PacketForwarder (2.0 - SDK 10.10) [Click for support]
/System/Library/Extensions
[not loaded] com.kensington.trackballworks.driver (1.1.0) [Click for support]
[not loaded] com.palm.ClassicNotSeizeDriver (3.2) [Click for support]
Startup Items: (What does this mean?)
HP IO: Path: /Library/StartupItems/HP IO
Startup items are obsolete in OS X Yosemite
Launch Agents: (What does this mean?)
[running] com.avast.update-agent.plist [Click for support]
[loaded] com.avast.userinit.plist [Click for support]
[running] com.brother.LOGINserver.plist [Click for support]
[loaded] com.google.keystone.agent.plist [Click for support]
[loaded] com.hp.help.tocgenerator.plist [Click for support]
[running] com.micromat.TechToolProAgent.plist [Click for support]
[loaded] com.oracle.java.Java-Updater.plist [Click for support]
Launch Daemons: (What does this mean?)
[loaded] com.adobe.fpsaud.plist [Click for support]
[loaded] com.avast.init.plist [Click for support]
[loaded] com.avast.uninstall.plist [Click for support]
[loaded] com.avast.update.plist [Click for support]
[loaded] com.google.keystone.daemon.plist [Click for support]
[loaded] com.macpaw.CleanMyMac3.Agent.plist [Click for support]
[running] com.micromat.TechToolProDaemon.plist [Click for support]
[loaded] com.microsoft.office.licensing.helper.plist [Click for support]
[loaded] com.oracle.java.Helper-Tool.plist [Click for support]
[loaded] com.oracle.java.JavaUpdateHelper.plist [Click for support]
[loaded] com.teamviewer.Helper.plist [Click for support]
[loaded] com.timesoftware.timemachineeditor.backupd-auto.plist [Click for support]
User Launch Agents: (What does this mean?)
[loaded] com.adobe.ARM.[...].plist [Click for support]
[loaded] com.avast.home.userinit.plist [Click for support]
[loaded] com.macpaw.CleanMyMac3.Scheduler.plist [Click for support]
[running] ws.agile.1PasswordAgent.plist [Click for support]
User Login Items: (What does this mean?)
Dropbox Programm (/Applications/Dropbox.app)
Other Apps: (What does this mean?)
[running] 2BUA8C4S2C.com.agilebits.onepassword-osx-helper
[running] com.apple.xpc.launchd.oneshot.0x10000001.Growl
[running] com.apple.xpc.launchd.oneshot.0x1000000e.EtreCheck
[loaded] com.avast.account
[loaded] com.avast.crashreport
[running] com.avast.daemon
[running] com.avast.fileshield
[running] com.avast.helper
[running] com.avast.proxy
[running] com.avast.service
[running] com.brother.utility.NETserver.992
[running] com.brother.utility.USBserver.96672
[running] com.evernote.EvernoteHelper
[running] com.getdropbox.dropbox.27552
[loaded] com.growl.GrowlLauncher
[running] com.vanprosolutions.BwanaDik.22752
[loaded] com.vanprosolutions.BwanaDikLauncher
Internet Plug-ins: (What does this mean?)
NPLoaderOSX: Version: Unknown
PandoWebInst: Version: 1.0 [Click for support]
Default Browser: Version: 601 - SDK 10.11
Flip4Mac WMV Plugin: Version: 3.0.0.126 - SDK 10.8 [Click for support]
OfficeLiveBrowserPlugin: Version: 12.3.6 [Click for support]
AdobePDFViewerNPAPI: Version: 11.0.12 - SDK 10.6 [Click for support]
DivXBrowserPlugin: Version: 1.4 [Click for support]
FlashPlayer-10.6: Version: 19.0.0.226 - SDK 10.6 [Click for support]
Silverlight: Version: 4.0.60531.0 [Click for support]
QuickTime Plugin: Version: 7.7.3
Flash Player: Version: 19.0.0.226 - SDK 10.6 [Click for support]
iPhotoPhotocast: Version: 7.0
SharePointBrowserPlugin: Version: 14.5.4 - SDK 10.6 [Click for support]
AdobePDFViewer: Version: 11.0.12 - SDK 10.6 [Click for support]
CANONiMAGEGATEWAYDL: Version: 2.0.1.10 [Click for support]
CANONiMAGEGATEWAYLI: Version: 2.0.1.6 [Click for support]
ContentUploaderPlugin: Version: 1.2 [Click for support]
JavaAppletPlugin: Version: Java 8 Update 45 Check version
User internet Plug-ins: (What does this mean?)
Google Earth Web Plug-in: Version: 7.1 [Click for support]
Safari Extensions: (What does this mean?)
1Password
Avast Online Security
Evernote Web Clipper
Translate
3rd Party Preference Panes: (What does this mean?)
DivX [Click for support]
Flash Player [Click for support]
Flip4Mac WMV [Click for support]
Java [Click for support]
TrackballWorks [Click for support]
Perian [Click for support]
TechTool Protection [Click for support]
Time Machine: (What does this mean?)
Skip System Files: NO
Mobile backups: ON
Auto backup: YES
Volumes being backed up:
Eva's AirBook: Disk size: 233.23 GB Disk used: 121.71 GB
Destinations:
Data [Network]
Total size: 2.00 TB
Total number of backups: 128
Oldest backup: 09.11.12, 21:39
Last backup: 28.10.15, 13:40
Size of backup disk: Excellent
Backup size 2.00 TB > (Disk size 233.23 GB X 3)
Top Processes by CPU: (What does this mean?)
5% WindowServer
3% backupd
3% diskimages-helper
1% fontd
0% TechToolProDirectoryBackup
Top Processes by Memory: (What does this mean?)
748 MB kernel_task
459 MB softwareupdated
221 MB mds_stores
205 MB com.avast.daemon
139 MB mdworker(12)
Virtual Memory Information: (What does this mean?)
2.20 GB Free RAM
5.79 GB Used RAM (4.66 GB Cached)
100 MB Swap Used