Applications hang frequently. Disk Utility keeps repairing iTunes, system libraries and applications, but the next time I start my notebook, again applications hang

Question

applications on my Macbook Pro 10.8.5 (8 GB) hang frequently. Disk Utility keeps repairing iTunes, system libraries and applications, but the next time I start my notebook, again applications hang. What do I do?  Itunes, Preview window, Microsoft Office 11 are the programs with most frequent hangs.

Answer 1

HI again. installed and then uninstalled both Mackeeper and Blackberry with their software. Etrecheck still shows the same 'failed to load' error. Pasted below. Could you pls advise what is still going wrong? What am I missing? I donot seem to understand the detailed procedure of home/library etc for checking complete removal of clean my mac. Sorry to bother you and thank you a million times for your assistance!
Hardware Information:
          MacBook Pro (13-inch, Mid 2012)
          MacBook Pro - model: MacBookPro9,2
          1 2.9 GHz Intel Core i7 CPU: 2 cores
          8 GB RAM
Video Information:
          Intel HD Graphics 4000 - VRAM: 512 MB
Startup Items:
          GT Network Tuning - Path: /System/Library/StartupItems/GT Network Tuning
          NMPCCardDaemonVMC - Path: /System/Library/StartupItems/NMPCCardDaemonVMC
          NMPPPMonitor - Path: /System/Library/StartupItems/NMPPPMonitor
          Freecorder - Path: /Library/StartupItems/Freecorder
          HWNetMgr - Path: /Library/StartupItems/HWNetMgr
System Software:
          OS X 10.8.5 (12F45) - Uptime: 0 days 0:9:7
Disk Information:
          APPLE HDD HTS547575A9E384 disk0 : (750.16 GB)
                    disk0s1 (disk0s1) <not mounted>: 209.7 MB
                    Macintosh HD (disk0s2) /: 749.3 GB (225.09 GB free)
                    Recovery HD (disk0s3) <not mounted>: 650 MB
          MATSHITADVD-R   UJ-8A8 
USB Information:
          Apple Inc. FaceTime HD Camera (Built-in)
          Apple Inc. BRCM20702 Hub
                    Apple Inc. Bluetooth USB Host Controller
          Apple Computer, Inc. IR Receiver
          Apple Inc. Apple Internal Keyboard / Trackpad
FireWire Information:
Thunderbolt Information:
          Apple Inc. thunderbolt_bus
Kernel Extensions:
          com.rim.driver.BlackBerryUSBDriverInt          (0.0.97)
          com.rim.driver.BlackBerryVirtualPrivateNetwork          (1.0.15)
          com.silex.driver.sxuptp          (1.5.1)
Problem System Launch Daemons:
          [loaded] BkBackupScheduler.plist
Problem System Launch Agents:
Launch Daemons:
          [loaded] com.adobe.fpsaud.plist
          [not loaded] com.Affinegy.InstaLANd.plist
          [loaded] com.intego.BackupAssistant.daemon.plist
          [loaded] com.microsoft.office.licensing.helper.plist
          [loaded] com.oracle.java.JavaUpdateHelper.plist
          [loaded] com.rim.BBDaemon.plist
          [not loaded] com.rim.nkehelper.plist
          [loaded] com.rim.tunmgr.plist
          [loaded] org.macosforge.xquartz.privileged_startx.plist
Launch Agents:
          [failed] cn.com.zte.usbswapper.plist
          [loaded] com.Affinegy.InstaLANa.plist
          [loaded] com.intego.backupassistant.agent.plist
          [loaded] com.rim.BBLaunchAgent.plist
          [loaded] com.rim.blackberrylink.BlackBerry-Link-Helper-Agent.plist
          [loaded] com.rim.PeerManager.plist
          [not loaded] de.novamedia.NovamediaDiskSupressor.plist
          [loaded] org.macosforge.xquartz.startx.plist
User Launch Agents:
          [loaded] com.adobe.ARM.202f4087f2bbde52e3ac2df389f53a4f123223c9cc56a8fd83a6f7ae.plist
          [loaded] com.google.GoogleContactSyncAgent.plist
          [loaded] com.google.keystone.agent.plist
          [loaded] com.macpaw.CleanMyMac.helperTool.plist
          [loaded] com.macpaw.CleanMyMac.trashSizeWatcher.plist
          [loaded] com.macpaw.CleanMyMac.volumeWatcher.plist
User Login Items:
          None
3rd Party Preference Panes:
          Flash Player
          FUSE for OS X (OSXFUSE)
          Growl
          Java
Internet Plug-ins:
          AdobePDFViewer.plugin
          AdobePDFViewerNPAPI.plugin
          Flash Player.plugin
          FlashPlayer-10.6.plugin
          iPhotoPhotocast.plugin
          JavaAppletPlugin.plugin
          OfficeLiveBrowserPlugin.plugin
          QuickTime Plugin.plugin
          RL Secure Plug-In Layer.plugin
          SharePointBrowserPlugin.plugin
          Silverlight.plugin
User Internet Plug-ins:
          ContentManager.plugin
          RocketEngine.plugin
          UploadManager.plugin
Bad Fonts:
          None
Top Processes by CPU:
               2%          hidd
               2%          Safari
               1%          EtreCheck
               1%          fontd
               1%          PluginProcess
               1%          WindowServer
               0%          WebProcess
               0%          PeerManager
               0%          BBLaunchAgent
               0%          mDNSResponder
Top Processes by Memory:
          147 MB             WebProcess
          139 MB             Safari
          66 MB              mds
          57 MB              com.apple.dock.extra
          57 MB              CalendarAgent
          49 MB              Dock
          41 MB              BlackBerry-Link-Helper-Agent
          41 MB              Finder
          41 MB              WindowServer
          33 MB              PluginProcess
Virtual Memory Statistics
          5.69 GB            Free RAM
          1015 MB            Active RAM
          125 MB             Inactive RAM
          1.20 GB            Wired RAM
          244 MB             Page-ins
          0 B                Page-outs