dominic23: Thanks I have done that. But I should say that I tried Disk Utility, run from the iMac HD and it found a problem it couldn't repair. I then booted from a USB stick and ran Disk Utility from that. It found a problem (file catalog I think) and at first failed to repair it, I tried again and it said it repaired the disk. I should have copied a full report. I don't know yet if that has helped but here is the report from EtreCheck (I chose "apps crashing"). In red Rapport is security software for banking which seems no longer compatible with MacOS:
EtreCheck version: 3.1.5 (343)
Report generated 2016-12-12 20:30:40
Download EtreCheck from https://etrecheck.com
Runtime 2:54
Performance: Excellent
Click the [Support] links for help with non-Apple products.
Click the [Details] links for more information about that line.
Problem: Apps are crashing
Hardware Information:ⓘ
21.5" iMac (Mid 2010)
[Technical Specifications] - [User Guide] - [Warranty & Service]
iMac - model: iMac11,2
1 3.06 GHz Intel Core i3 (i3) CPU: 2-core
8 GB RAM Upgradeable - [Instructions]
BANK 0/DIMM0
2 GB DDR3 1333 MHz ok
BANK 1/DIMM0
2 GB DDR3 1333 MHz ok
BANK 0/DIMM1
2 GB DDR3 1333 MHz ok
BANK 1/DIMM1
2 GB DDR3 1333 MHz ok
Bluetooth: Old - Handoff/Airdrop2 not supported
Wireless: en1: 802.11 a/b/g/n
Video Information:ⓘ
ATI Radeon HD 4670 - VRAM: 256 MB
iMac 1920 x 1080
System Software:ⓘ
macOS Sierra 10.12.1 (16B2555) - Time since boot: less than an hour
Disk Information:ⓘ
WDC WD5000AAKS-40V6A0 disk0 : (500.11 GB) (Rotational)
[Show SMART report]
EFI (disk0s1) <not mounted> : 210 MB
Macintosh HD (disk0s2) / [Startup]: 499.25 GB (214.87 GB free)
Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
PIONEER DVD-RW DVRTS09 ()
USB Information:ⓘ
SanDisk Cruzer Force
Western Digital Ext HDD 1021
Apple Card Reader
Apple Inc. BRCM2046 Hub
Apple Inc. Bluetooth USB Host Controller
Apple, Inc. Keyboard Hub
Apple, Inc Apple Keyboard
Apple Computer, Inc. IR Receiver
Apple Inc. Built-in iSight
Gatekeeper:ⓘ
Mac App Store and identified developers
Kernel Extensions:ⓘ
/Applications/Faceless.app
[not loaded] me.faceless.tun (20111101 - 2014-05-23) [Support]
System Launch Agents:ⓘ
[not loaded] 8 Apple tasks
[loaded] 169 Apple tasks
[running] 94 Apple tasks
System Launch Daemons:ⓘ
[not loaded] 40 Apple tasks
[loaded] 166 Apple tasks
[running] 98 Apple tasks
Launch Agents:ⓘ
[failed] com.adobe.ARMDCHelper.cc24aef4a1b90ed56a725c38014c95072f92651fb65e1bf9c8e43c37a2 3d420d.plist (2016-10-12) [Support]
[running] com.epson.Epson_Low_Ink_Reminder.launcher.plist (2015-01-07) [Support]
[running] com.epson.eventmanager.agent.plist (2015-01-07) [Support]
[loaded] com.google.keystone.agent.plist (2016-08-24) [Support]
[not loaded] com.oracle.java.Java-Updater.plist [Support]
[running] com.robohippo.HippoConnectAgent.plist (2012-06-22) [Support]
[failed] com.trusteer.rapport.rapportd.plist (2015-05-06) [Support] - /Library/Rapport/bin/rapportd.app/Contents/MacOS/rapportd: Executable not found!
Launch Daemons:ⓘ
[loaded] com.adobe.ARMDC.Communicator.plist (2016-10-12) [Support]
[loaded] com.adobe.ARMDC.SMJobBlessHelper.plist (2016-10-12) [Support]
[loaded] com.adobe.fpsaud.plist (2016-10-26) [Support]
[loaded] com.google.keystone.daemon.plist (2016-09-08) [Support]
[loaded] com.microsoft.office.licensing.helper.plist (2010-08-25) [Support]
[not loaded] com.oracle.java.Helper-Tool.plist [Support]
[not loaded] com.robohippo.HippoConnectDaemon.plist (2012-06-22) [Support]
[running] com.trusteer.rooks.rooksd.plist (2015-05-06) [Support]
User Launch Agents:ⓘ
[failed] com.apple.CSConfigDotMacCert-[...]@me.com-SharedServices.Agent.plist (2010-11-03) - /System/Library/Frameworks/CoreServices.framework/Frameworks/OSServices.framewo rk/Versions/A/Support/CSConfigDotMacCert: Executable not found!
User Login Items:ⓘ
Canon IJ Network Scanner Selector EX Application Hidden
(/Applications/Canon Utilities/IJ Network Scanner Selector EX/Canon IJ Network Scanner Selector EX.app)
Internet Plug-ins:ⓘ
Easy-WebPrint EX: 1.1.0 (2011-06-17) [Support]
o1dbrowserplugin: 5.41.3.0 - SDK 10.8 (2015-12-18) [Support]
Flip4Mac WMV Plugin: 2.4.2.4 (2012-04-01) [Support]
NP2020Player: 4.5.4.0 (2010-09-30) [Support]
AdobePDFViewerNPAPI: 15.020.20042 - SDK 10.11 (2016-11-04) [Support]
FlashPlayer-10.6: 23.0.0.207 - SDK 10.9 (2016-11-09) [Support]
Silverlight: 5.1.41212.0 - SDK 10.6 (2016-04-29) [Support]
QuickTime Plugin: 7.7.3 (2016-10-29)
Flash Player: 23.0.0.207 - SDK 10.9 (2016-11-09) [Support]
googletalkbrowserplugin: 5.41.3.0 - SDK 10.8 (2015-12-11) [Support]
iPhotoPhotocast: 7.0 (2010-07-21)
AdobePDFViewer: 15.020.20042 - SDK 10.11 (2016-11-04) [Support]
SharePointBrowserPlugin: 14.0.0 (2010-08-25) [Support]
EPPEX Plugin: 3.0.5.0 (2010-11-17) [Support]
JavaAppletPlugin: 15.0.1 - SDK 10.12 (2014-05-21) Check version
3rd Party Preference Panes:ⓘ
Flash Player (2016-10-26) [Support]
Trusteer Endpoint Protection (2015-05-06) [Support]
Tuxera NTFS (2013-03-16) [Support]
Time Machine:ⓘ
Mobile backups: OFF
Auto backup: YES
Volumes being backed up:
Macintosh HD: Disk size: 499.25 GB Disk used: 284.38 GB
Destinations:
Backup [Local]
Total size: 1.00 TB
Total number of backups: 150
Oldest backup: 24/04/2014, 12:03
Last backup: 12/12/2016, 19:24
Size of backup disk: Adequate
Backup size 1.00 TB > (Disk used 284.38 GB X 3)
Top Processes by CPU:ⓘ
6% mdworker(30)
3% WindowServer
2% mds
2% fontd(2)
1% FileStatsAgent
Top Processes by Memory:ⓘ
667 MB kernel_task
393 MB mdworker(30)
319 MB com.apple.WebKit.WebContent(3)
131 MB Finder(2)
123 MB mds_stores
Virtual Memory Information:ⓘ
4.61 GB Available RAM
2.24 GB Free RAM
3.39 GB Used RAM
2.37 GB Cached files
0 B Swap Used
Diagnostics Information:ⓘ
Dec 12, 2016, 08:11:08 PM Self test - passed
