Macbook pro constantly freezing/crashing

Question

In the past 2 or 3 days (as of September 16, 2015), my macbook pro has been frequently "pinwheeling"; that is, it freezes on the simplest of commands. From opening Microsoft office to trying to play a movie to simply opening safari or really any program, I get the dreaded pinwheel for anywhere from 30 seconds to about 2-3 minutes. This happens a few dozen times a day now, and I don&#x27;t know why. I have OS X Yosemite, and all software updates download. I did install a few open source programs (Handbrake), but but the constant freezing/crashing didn&#x27;t occur until about a week or so later. ANY HELP IS APPRECIATED. I ran a diagnostics test, but have no idea how to read it. It is posted below:Boot Mode: NormalSystem diagnostics:   awdd 2015-09-12-100300 awd   awdd 2015-09-13-134247 awd   awdd 2015-09-16-001251 awd   awdd 2015-09-16-010820 awd   awdd 2015-09-16-024640 awd   com.apple.WebKit.Plugin.64 2015-08-19-201913 crash   steam osx 2015-09-02-230710 hang   steam osx 2015-09-15-162947 hang   taskgated 2015-08-20-144723 crash   taskgated 2015-08-20-144832 crashUser diagnostics:   UserKernel 2015-09-08-234405 crash   UserKernel 2015-09-09-030917 crash   UserKernel 2015-09-15-205744 crash   UserKernel 2015-09-16-000745 crash   UserKernel 2015-09-16-004421 crash   VLC 2015-09-08-022756 crash   com.apple.WebKit.WebContent 2015-09-12-070647 crash   sharingd 2015-09-14-232327 crash   sharingd 2015-09-15-213253 crash   steam osx 2015-09-15-201653 crashKernel messages:   Sep 14 00:09:46   Sound assertion in AppleHDAFunctionGroup at line 1058   Sep 14 00:14:22   disk1: I/O error.   Sep 14 23:03:53   PM notification timeout (pid 85, loginwindow)   Sep 14 23:03:53   PM notification timeout (pid 272, sharingd)   Sep 14 23:03:53   PM notification timeout (pid 279, identityservices)   Sep 14 23:03:53   PM notification timeout (pid 289, callservicesd)   Sep 14 23:03:53   PM notification timeout (pid 252, Safari)   Sep 14 23:03:53   PM notification timeout (pid 298, soagent)   Sep 14 23:03:53   PM notification timeout (pid 294, com.apple.WebKit)   Sep 14 23:03:53   PM notification timeout (pid 328, PhotoStreamAgent)   Sep 14 23:04:04   disk1: I/O error.   Sep 15 01:59:13   Over-release of kernel-internal importance assertions for pid 37 (syslogd), dropping 1 assertion(s) but task only has 0 remaining (0 external).   Sep 15 01:59:49   disk1: I/O error.   Sep 16 16:36:46   PM notification timeout (pid 61, coreduetd)   Sep 16 16:36:46   disk1: I/O error.   Sep 16 17:21:46   PM notification timeout (pid 61, coreduetd)   Sep 16 17:22:08   disk1: I/O error.Extrinsic system jobs:   com.microsoft.office.licensing.helper   com.ea.origin.ESHelper   com.adobe.fpsaudExtrinsic agents:   com.valvesoftware.steamclean   com.valvesoftware.steam.ipctool   com.google.keystone.user.agent   com.divx.update.agent   com.divx.dms.agent/Library/LaunchAgents:   /Library/LaunchAgents/com.divx.dms.agent.plist   /Library/LaunchAgents/com.divx.update.agent.plist/Library/LaunchDaemons:   /Library/LaunchDaemons/com.adobe.fpsaud.plist   /Library/LaunchDaemons/com.ea.origin.ESHelper.plist   /Library/LaunchDaemons/com.microsoft.office.licensing.helper.plist/Library/PrivilegedHelperTools:   /Library/PrivilegedHelperTools/com.ea.origin.ESHelper   /Library/PrivilegedHelperTools/com.microsoft.office.licensing.helperLibrary/LanguageModeling:   Library/LanguageModeling/de-dynamic.lm/Info.plist   Library/LanguageModeling/de-dynamic.lm/meta.dat   Library/LanguageModeling/de-dynamic.lm/tags.dat   Library/LanguageModeling/en-dynamic.lm/Info.plist   Library/LanguageModeling/en-dynamic.lm/meta.dat   Library/LanguageModeling/en-dynamic.lm/tags.dat   Library/LanguageModeling/es-dynamic.lm/Info.plist   Library/LanguageModeling/es-dynamic.lm/meta.dat   Library/LanguageModeling/es-dynamic.lm/tags.dat   Library/LanguageModeling/fr-dynamic.lm/Info.plist   Library/LanguageModeling/fr-dynamic.lm/meta.dat   Library/LanguageModeling/fr-dynamic.lm/tags.dat   Library/LanguageModeling/it-dynamic.lm/Info.plist   Library/LanguageModeling/it-dynamic.lm/meta.dat   Library/LanguageModeling/it-dynamic.lm/tags.dat   Library/LanguageModeling/nl-dynamic.lm/Info.plist   Library/LanguageModeling/nl-dynamic.lm/meta.dat   Library/LanguageModeling/nl-dynamic.lm/tags.datLibrary/LaunchAgents:   Library/LaunchAgents/com.google.keystone.agent.plist   Library/LaunchAgents/com.valvesoftware.steamclean.plistExtrinsic loadable bundles:   /Library/Internet Plug-Ins/DivX Web Player.plugin    (com.divx.DivXWebPlayer)   /Library/Internet Plug-Ins/Flash Player.plugin    (com.macromedia.Flash Player.plugin)   /Library/Internet Plug-Ins/OVSHelper.plugin    (com.divx.OVSHelper)   /Library/Internet Plug-Ins/SharePointBrowserPlugin.plugin    (com.microsoft.sharepoint.browserplugin)   /Library/Internet Plug-Ins/SharePointWebKitPlugin.webplugin    (com.microsoft.sharepoint.webkitplugin)   /Library/Internet Plug-Ins/Silverlight.plugin    (com.microsoft.SilverlightPlugin)   /Library/PreferencePanes/Flash Player.prefPane    (com.adobe.flashplayerpreferences)   Library/Address Book Plug-Ins/SkypeABDialer.bundle    (com.skype.skypeabdialer)   Library/Address Book Plug-Ins/SkypeABSMS.bundle    (com.skype.skypeabsms)Unsigned shared libraries:   /usr/lib/libdvdcss.2.dylibProfiles:   _computerlevel[1] attribute: profileIdentifier: com.securew2.cofc-secureUser login items:   iTunesHelper   SteamRestricted user files:       62Font problems:        0Bad plists:   Library/Preferences/com.apple.WebFoundation.plistElapsed time (s): 771

Linc Davis · Answer

The startup drive is failing, or there is some other internal hardware fault.Back up all data on the drive immediately if you don&#x27;t already have a current backup. There are ways to back up a computer that isn&#x27;t fully functional—ask if you need guidance.Make a "Genius" appointment at an Apple Store, or go to another authorized service provider.If privacy is a concern, erase the data partition(s) with the option to write zeros* (do this only if you have at least two complete, independent backups, and you know how to restore to an empty drive from any of them.) Don’t erase the recovery partition, if present.Keeping your confidential data secure during hardware repairApple also recommends that you deauthorize a device in the iTunes Store before having it serviced.*An SSD doesn&#x27;t need to be zeroed.