BobHarris: Thanks. The EtreCheck output follows:
Problem description:
My iMac is very slow.
EtreCheck version: 2.2 (132)
Report generated 4/22/15 2:28 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: ℹ️
iMac (21.5-inch, Mid 2010) (Technical Specifications)
iMac - model: iMac11,2
1 3.06 GHz Intel Core i3 CPU: 2-core
4 GB RAM
BANK 0/DIMM0
Empty
BANK 1/DIMM0
Empty
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: Unknown
Video Information: ℹ️
ATI Radeon HD 4670 - VRAM: 256 MB
iMac 1920 x 1080
System Software: ℹ️
Mac OS X 10.7.5 (11G63) - Time since boot: 2:36:57
Disk Information: ℹ️
ST3500418AS disk0 : (500.11 GB)
disk0s1 (disk0s1) <not mounted> : 210 MB
Macintosh HD (disk0s2) / : 499.25 GB (372.93 GB free)
Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
OPTIARC DVD RW AD-5680H
USB Information: ℹ️
hp psc 1300 series
Apple Internal Memory Card Reader
Apple Inc. BRCM2046 Hub
Apple Inc. Bluetooth USB Host Controller
LaCie LaCie Hard Drive Quadra 1 TB
disk1s1 (disk1s1) <not mounted> : 32 KB
Partition 1 (disk1s3) /Volumes/Partition 1 : 333.27 GB (31.07 GB free)
Partition 2 (disk1s5) /Volumes/Partition 2 : 333.27 GB (84.70 GB free)
Partition 3 (disk1s7) /Volumes/Partition 3 : 333.27 GB (36.70 GB free)
Apple Computer, Inc. IR Receiver
Apple Inc. Built-in iSight
Startup Items: ℹ️
HP IO: Path: /Library/StartupItems/HP IO
Startup items are obsolete in OS X Yosemite
Launch Agents: ℹ️
[not loaded] com.adobe.AAM.Updater-1.0.plist [Click for support]
[loaded] com.adobe.CS5ServiceManager.plist [Click for support]
[loaded] com.coupons.coupond.plist [Click for support]
Launch Daemons: ℹ️
[loaded] com.adobe.fpsaud.plist [Click for support]
[not loaded] com.adobe.SwitchBoard.plist [Click for support]
User Launch Agents: ℹ️
[loaded] com.adobe.AAM.Updater-1.0.plist [Click for support]
[failed] com.apple.CSConfigDotMacCert-[...]@me.com-SharedServices.Agent.plist [Click for details]
User Login Items: ℹ️
iTunesHelper Application (/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)
Microsoft AU Daemon Application (/Applications/Microsoft AutoUpdate.app/Contents/MacOS/Microsoft AU Daemon.app)
HP IO Classic Proxy 2 Application Hidden (/Library/Frameworks/HPServicesInterface.framework/Versions/B/Runtime/HP IO Classic Proxy 2.app)
HP IO Classic Proxy Application Hidden (/Library/Frameworks/HPServicesInterface.framework/Versions/A/Runtime/HP IO Classic Proxy.app)
Director Docker Application (/Applications/Hewlett-Packard/HP Photo and Imaging Software/HP Photo and Imaging Director/Director Docker.app)
Internet Plug-ins: ℹ️
FlashPlayer-10.6: Version: 17.0.0.169 - SDK 10.6 [Click for support]
CouponPrinter-FireFox_v2: Version: 5.0.3 - SDK 10.6 [Click for support]
Flash Player: Version: 17.0.0.169 - SDK 10.6 [Click for support]
iPhotoPhotocast: Version: 7.0 - SDK 10.7
JavaAppletPlugin: Version: 14.9.0 - SDK 10.7 Check version
QuickTime Plugin: Version: 7.7.1
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
3% fontd
2% WindowServer
0% coreservicesd
0% mds
0% blued
Top Processes by Memory: ℹ️
78 MB mds
41 MB Finder
33 MB mdworker(3)
29 MB WindowServer
29 MB Dock
Virtual Memory Information: ℹ️
2.60 GB Free RAM
1.40 GB Used RAM
0 B Swap Used
Diagnostics Information: ℹ️
Apr 22, 2015, 11:38:18 AM /Users/[redacted]/Library/Logs/DiagnosticReports/helpd_2015-04-22-113818_[redac ted].crash
Apr 21, 2015, 02:37:28 PM /Users/[redacted]/Library/Logs/DiagnosticReports/Adobe Premiere Pro CS5_2015-04-21-143728_[redacted].crash
Apr 22, 2015, 11:51:45 AM Self test - passed