Macbook Pro running Yosemite - can't boot up

My 13" MAcBook Pro, 5 years old, 160 GB HD running Yosemite for more than 6 months
When I start up , I get the Apple logo and the bar but it takes me half way and then freezes
Tried starting with holding down "R" & " command" mode and checked HD using Disc Uts , no problems with HD, exit code is 0
Zapped the PRAm as well.
Has anyone had this problem and found a solution ?

Startup Issues - Resolve
Startup Issues - Resolve (2)
Startup Issues - Resolve (3)
Startup - Gray, Blue or White screen at boot, w/spinner/progress bar
Startup - Gray Screen

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Hi Kelly,
As someone who has to print from my Mac to a networked printer at home all the time, I can certainly understand how frustrating it must be to have that fail to perform as expected. Let's see if we can get you up and running.
I would suggest that you troubleshoot using the steps in this article -
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Start with the section titled Check the network.
Thanks for using Apple Support Communities.
Sincerely,
Brett L

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Message was edited by: EZ Jim
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Macbook Pro running Yosemite is running very slow. Takes long time to login and open applications. My Etrecheck report is listed below

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: (null)
System Software:
OS X 10.10 (14A389) - Uptime: 0 days 0:12:48
Disk Information:
TOSHIBA MK7559GSXF disk0 : (750.16 GB)
EFI (disk0s1) <not mounted>: 209.7 MB
disk0s2 (disk0s2) <not mounted>: 749.3 GB
Recovery HD (disk0s3) <not mounted>: 650 MB
MATSHITADVD-R   UJ-8A8
USB Information:
Apple Inc. Apple Internal Keyboard / Trackpad
Apple Inc. BRCM20702 Hub
Apple Inc. Bluetooth USB Host Controller
Apple Computer, Inc. IR Receiver
Apple Inc. FaceTime HD Camera (Built-in)
FireWire Information:
Thunderbolt Information:
Apple Inc. thunderbolt_bus
Kernel Extensions:
com.rim.driver.BlackBerryUSBDriverInt (0.0.74)
com.squirrels.driver.AirParrotSpeakers (1.7 - SDK 10.7)
com.squirrels.airparrot.framebuffer (3 - SDK 10.7)
com.avast.PacketForwarder (1.4 - SDK 10.9)
com.avast.AvastFileShield (2.1.0 - SDK 10.9)
Startup Items:
HWNetMgr: Path: /Library/StartupItems/HWNetMgr
HWPortDetect: Path: /Library/StartupItems/HWPortDetect
StartOuc: Path: /Library/StartupItems/StartOuc
Problem System Launch Daemons:
Problem System Launch Agents:
Launch Daemons:
[loaded] com.adobe.fpsaud.plist 3rd-Party support link
[loaded] com.avamar.avagent.plist 3rd-Party support link
[loaded] com.avast.init.plist 3rd-Party support link
[loaded] com.avast.uninstall.plist 3rd-Party support link
[loaded] com.avast.update.plist 3rd-Party support link
[loaded] com.google.keystone.daemon.plist 3rd-Party support link
[loaded] com.microsoft.office.licensing.helper.plist 3rd-Party support link
[loaded] com.oracle.java.Helper-Tool.plist 3rd-Party support link
[loaded] com.oracle.java.JavaUpdateHelper.plist 3rd-Party support link
[loaded] HWNetMgr.plist 3rd-Party support link
Launch Agents:
[loaded] com.avast.userinit.plist 3rd-Party support link
[loaded] com.google.keystone.agent.plist 3rd-Party support link
[loaded] com.hp.messagecenter.launcher.plist 3rd-Party support link
[loaded] com.oracle.java.Java-Updater.plist 3rd-Party support link
[loaded] HWPortCfg.plist 3rd-Party support link
[failed] ouc.plist 3rd-Party support link
User Launch Agents:
[loaded] com.adobe.ARM.[...].plist 3rd-Party support link
[failed] com.avast.home.userinit.plist 3rd-Party support link
User Login Items:
Quicksilver
Adium
Evernote
IBM Notes
Safari
Microsoft PowerPoint
Dropbox
AvamarClient
Internet Plug-ins:
Flip4Mac WMV Plugin: Version: 3.2.0.16   - SDK 10.8 3rd-Party support link
FlashPlayer-10.6: Version: 15.0.0.189 - SDK 10.6 3rd-Party support link
Default Browser: Version: 600 - SDK 10.10
AdobePDFViewerNPAPI: Version: 11.0.09 - SDK 10.6 3rd-Party support link
AdobePDFViewer: Version: 11.0.09 - SDK 10.6 3rd-Party support link
Flash Player: Version: 15.0.0.189 - SDK 10.6 3rd-Party support link
QuickTime Plugin: Version: 7.7.3
SharePointBrowserPlugin: Version: 14.4.5 - SDK 10.6 3rd-Party support link
Silverlight: Version: 5.1.10411.0 - SDK 10.6 3rd-Party support link
JavaAppletPlugin: Version: Java 7 Update 60 Cannot contact Oracle
Audio Plug-ins:
BluetoothAudioPlugIn: Version: 4.3.0 - SDK 10.10
AirPlay: Version: 2.0 - SDK 10.10
AppleAVBAudio: Version: 300.22 - SDK 10.10
iSightAudio: Version: 7.7.3 - SDK 10.10
User Internet Plug-ins:
WebEx64: Version: 1.0 - SDK 10.6 3rd-Party support link
3rd Party Preference Panes:
Flash Player 3rd-Party support link
Flip4Mac WMV 3rd-Party support link
Java 3rd-Party support link
Bad Fonts:
None
Old Applications:
/Users/tcs/Library/Application Support/WebEx Folder/1524
convertpdf: Version: 1.2 - SDK 10.6 3rd-Party support link
Cisco WebEx Meeting Center: Version: 1409.11.2909.0 - SDK 10.6 3rd-Party support link
asannotation2: Version: 1308.22.2900.0 - SDK 10.6 3rd-Party support link
atmsupload: Version: 1408.13.2909.0 - SDK 10.6 3rd-Party support link
Adobe Flash Player Install Manager: Version: 15.0.0.189 - SDK 10.6 3rd-Party support link
/Applications/Utilities/Adobe Flash Player Install Manager.app
/Users/tcs/Library/Application Support/WebEx Folder/1324
convertpdf: Version: 1.2 - SDK 10.5 3rd-Party support link
Cisco WebEx Meeting Center: Version: 1304.23.2811.0 - SDK 10.5 3rd-Party support link
asannotation2: Version: 1206.25.2804.0 - SDK 10.5 3rd-Party support link
atmsupload: Version: 1209.12.2806.0 - SDK 10.5 3rd-Party support link
Microsoft Language Register: Version: 14.4.5 - SDK 10.5 3rd-Party support link
/Applications/Microsoft Office 2011/Additional Tools/Microsoft Language Register/Microsoft Language Register.app
AdBlock: Version: 36.0.1985.143 - SDK 10.6 3rd-Party support link
/Users/tcs/Library/Application Support/Google/Chrome/Default/Web Applications/_crx_gighmmpiobklfepjocnamgkkbiglidom/Default gighmmpiobklfepjocnamgkkbiglidom.app
SLLauncher: Version: 1.0 - SDK 10.5 3rd-Party support link
/Library/Application Support/Microsoft/Silverlight/OutOfBrowser/SLLauncher.app
Google Chrome: Version: 38.0.2125.104 - SDK 10.6 3rd-Party support link
Install Cisco WebEx Add-On: Version: 1.0 - SDK 10.5 3rd-Party support link
Adobe Reader: Version: 11.0.09 - SDK 10.6 3rd-Party support link
HandBrake: Version: 0.9.8 x86_64 - SDK 10.6 3rd-Party support link
iFunBox: Version: 1.0.0777 - SDK 10.6 3rd-Party support link
/Applications/Microsoft Office 2011
Microsoft PowerPoint: Version: 14.4.5 - SDK 10.5 3rd-Party support link
Microsoft Excel: Version: 14.4.5 - SDK 10.5 3rd-Party support link
Microsoft Outlook: Version: 14.4.5 - SDK 10.5 3rd-Party support link
Microsoft Word: Version: 14.4.5 - SDK 10.5 3rd-Party support link
Microsoft Document Connection: Version: 14.4.5 - SDK 10.5 3rd-Party support link
Google Voice Search Hotword (Beta): Version: 36.0.1985.125 - SDK 10.6 3rd-Party support link
/Users/tcs/Library/Application Support/Google/Chrome/Default/Web Applications/_crx_bepbmhgboaologfdajaanbcjmnhjmhfn/Default bepbmhgboaologfdajaanbcjmnhjmhfn.app
/Applications/Microsoft Office 2011/Office
Open XML for Excel: Version: 14.4.5 - SDK 10.5 3rd-Party support link
Microsoft Alerts Daemon: Version: 14.4.5 - SDK 10.5 3rd-Party support link
Office365Service: Version: 14.4.5 - SDK 10.6 3rd-Party support link
SyncServicesAgent: Version: 14.4.5 - SDK 10.5 3rd-Party support link
Microsoft Database Daemon: Version: 14.4.5 - SDK 10.5 3rd-Party support link
Microsoft Graph: Version: 14.4.5 - SDK 10.5 3rd-Party support link
Microsoft Database Utility: Version: 14.4.5 - SDK 10.5 3rd-Party support link
Microsoft Office Reminders: Version: 14.4.5 - SDK 10.5 3rd-Party support link
Microsoft Upload Center: Version: 14.4.5 - SDK 10.5 3rd-Party support link
My Day: Version: 14.4.5 - SDK 10.5 3rd-Party support link
Microsoft Chart Converter: Version: 14.4.5 - SDK 10.5 3rd-Party support link
Microsoft Clip Gallery: Version: 14.4.5 - SDK 10.5 3rd-Party support link
Evernote Web Clipper: Version: 36.0.1985.143 - SDK 10.6 3rd-Party support link
/Users/tcs/Library/Application Support/Google/Chrome/Default/Web Applications/_crx_pioclpoplcdbaefihamjohnefbikjilc/Default pioclpoplcdbaefihamjohnefbikjilc.app
Poppit!: Version: 36.0.1985.125 - SDK 10.6 3rd-Party support link
/Users/tcs/Library/Application Support/Google/Chrome/Default/Web Applications/_crx_mcbkbpnkkkipelfledbfocopglifcfmi/Default mcbkbpnkkkipelfledbfocopglifcfmi.app
/Users/tcs/Library/Application Support/WebEx Folder/1224
convertpdf: Version: 1.2 - SDK 10.5 3rd-Party support link
Cisco WebEx Meeting Center: Version: 1207.04.2732.10 - SDK 10.5 3rd-Party support link
asannotation2: Version: 8.25.31.0 - SDK 10.5 3rd-Party support link
atmsupload: Version: 4.14.29.0 - SDK 10.5 3rd-Party support link
Solver: Version: 1.0 - SDK 10.5 3rd-Party support link
/Applications/Microsoft Office 2011/Office/Add-Ins/Solver.app
Microsoft AutoUpdate: Version: 2.3.6 - SDK 10.4 3rd-Party support link
/Library/Application Support/Microsoft/MAU2.0/Microsoft AutoUpdate.app
FastestFox for Chrome: Version: 36.0.1985.125 - SDK 10.6 3rd-Party support link
/Users/tcs/Library/Application Support/Google/Chrome/Default/Web Applications/_crx_mmffncokckfccddfenhkhnllmlobdahm/Default mmffncokckfccddfenhkhnllmlobdahm.app
/Library/Application Support/Microsoft/MERP2.0
Microsoft Error Reporting: Version: 2.2.9 - SDK 10.4 3rd-Party support link
Microsoft Ship Asserts: Version: 1.1.4 - SDK 10.4 3rd-Party support link
Time Machine:
Skip System Files: NO
Mobile backups: OFF
Auto backup: YES
Time Machine not configured!
Top Processes by CPU:
      2% EtreCheck
      2% eclipse
      1% com.avast.daemon
      0% WindowServer
      0% configd
Top Processes by Memory:
319 MB eclipse
195 MB com.apple.WebKit.WebContent
123 MB com.avast.daemon
115 MB Evernote
98 MB Safari
Virtual Memory Information:
2.27 GB Free RAM
3.40 GB Active RAM
1.39 GB Inactive RAM
958 MB Wired RAM
2.59 GB Page-ins
0 B Page-outs

Step 1: uninstall Avast See how it is as that is a known culprit
Step 2: Chrome does not play well with OS X and is also sighted as a leading cause
Step 3: DropBox has been a processor or network hog though less so than the above two.
The Community you want(ed): MacBook Pro

Macbook Pro running Yosemite - can't boot up

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