My Mac is very slow to start up, or not starting at all

For the last month my computer has become very slow. The rainbow circle kept coming on everytime I send an instruction. Now it is extremely slow to star up and this morning is not even starting. I have had it on for more than 10min y still nothing happens. Any help will be welcome. I am a new user of Mac and not very familiar with the operating system.

Reset PRAM. http://support.apple.com/kb/PH4405
Start up in Safe Mode.
http://support.apple.com/kb/PH11212
Repair Disk
Steps 2 through 8
http://support.apple.com/kb/PH5836
Slow Startup
http://support.apple.com/kb/PH10929
Hope this helps.
Best.

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My mac is very slow at start up and throwing out its original boot disc, so i cant carry out any disk utility repair, any help

Hey guys, i have tried all the help i have so far been given but am still facing the same problem,
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Hello,
Have you done a PRAM reset, CMD+Option+p+r...
http://support.apple.com/kb/HT1379
In fact, do 3 in a row, takes a bit of time.
Does it boot to Single User Mode, CMD+s keys at bootup, if so try...
/sbin/fsck -fy
Repeat until it shows no errors fixed.
(Space between fsck AND -fy important).
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http://docs.info.apple.com/article.html?artnum=106214

After upgrading to mountain lion my mac is very slow?

Hello
After upgrading to mountain lion my mac is very slow
It was starting in 10 seconds and shuting dow in 5 seconds and now it's taking more than one minute to start it or shut down it and everything is slow
why????????/
Thanks

First, back up all data immediately, as your boot drive might be failing.
Take these steps when you notice the problem.
Step 1
Launch the Activity Monitor application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
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Select All Processes from the menu in the toolbar, if not already selected.
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Select the System Memory tab. What values are shown in the bottom part of the window for Page outs and Swap used?
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You must be logged in as an administrator to carry out this step.
Launch the Console application in the same way as above. Make sure the title of the Console window is All Messages. If it isn't, select All Messages from the SYSTEM LOG QUERIES menu on the left.
Post the 50 or so most recent messages in the log — the text, please, not a screenshot.
When posting a log extract, be selective. Don't post more than is requested.
Please do not indiscriminately dump thousands of lines from the log into a message.
Important: Some personal information, such as your name, may appear in the log. Edit it out before posting.

MacBook suddenly very slow to start and operate

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Yes I am using Sophos!
Do Sophos have a feature/bug request page? This is one feature I can do without!
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Hello Chris,
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Mac OS X 10.6: If items automatically open when you log in
http://support.apple.com/kb/PH6811
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Mac OS X: Gray screen appears during startup
http://support.apple.com/kb/TS2570
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Thanks, Chris

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Mac OS X 10.6: If items automatically open when you log in
http://support.apple.com/kb/PH6811
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http://support.apple.com/kb/TS2570
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Take it to Apple Store. You are covered under your 1 year warranty.

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It will help people help you better if you post your iMac variant and Mac OSX version. Please do "About this Mac" from your Apple menu and, in the resulting window, click the "More Info" button. That will give this window:
The model is in the line I've indicated with the red arrow. Please also post the results for "Memory" and "Processor."
DO NOT post the serial number, however.

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Problem description:
Computer started running very slowly, when I type there is a delay and internet connection is very slow although it is not the wifi connection because it is running well on all other computers, phones, ect.
EtreCheck version: 2.1.8 (121)
Report generated March 28, 2015 12:02:27 PM HST
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
    MacBook Pro (13-inch, Late 2011) (Technical Specifications)
    MacBook Pro - model: MacBookPro8,1
    1 2.4 GHz Intel Core i5 CPU: 2-core
    4 GB RAM
        BANK 0/DIMM0
            2 GB DDR3 1333 MHz ok
        BANK 1/DIMM0
            2 GB DDR3 1333 MHz ok
    Bluetooth: Old - Handoff/Airdrop2 not supported
    Wireless: en1: 802.11 a/b/g/n
    Battery Health: Normal - Cycle count 640
Video Information: ℹ️
    Intel HD Graphics 3000 - VRAM: 384 MB
        Color LCD 1280 x 800
System Software: ℹ️
    Mac OS X 10.7.5 (11G63) - Time since boot: 24 days 0:56:6
Disk Information: ℹ️
    ST9500325ASG disk0 : (500.11 GB)
        disk0s1 (disk0s1) <not mounted> : 210 MB
        Macintosh HD (disk0s2) / : 499.25 GB (422.45 GB free)
        Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
    MATSHITADVD-R   UJ-8A8
USB Information: ℹ️
    Apple Inc. Apple Internal Keyboard / Trackpad
    Apple Inc. BRCM2070 Hub
        Apple Inc. Bluetooth USB Host Controller
    Apple Inc. FaceTime HD Camera (Built-in)
    Apple Computer, Inc. IR Receiver
Thunderbolt Information: ℹ️
    Apple, Inc. MacBook Pro
Launch Agents: ℹ️
    [running]    com.Affinegy.InstaLANa.plist [Click for support]
    [loaded]    com.google.keystone.agent.plist [Click for support]
Launch Daemons: ℹ️
    [loaded]    com.adobe.fpsaud.plist [Click for support]
    [unknown]    com.Affinegy.InstaLANd.plist [Click for support]
    [loaded]    com.google.keystone.daemon.plist [Click for support]
    [loaded]    com.microsoft.office.licensing.helper.plist [Click for support]
User Launch Agents: ℹ️
    [loaded]    com.adobe.ARM.[...].plist [Click for support]
    [failed]    com.apple.CSConfigDotMacCert-[...]@me.com-SharedServices.Agent.plist [Click for details]
    [running]    com.spotify.webhelper.plist [Click for support]
User Login Items: ℹ️
    iTunesHelper    Application Hidden (/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)
    GrowlHelperApp    Application (/Library/PreferencePanes/Growl.prefPane/Contents/Resources/GrowlHelperApp.app)
    Belkin Router Monitor    Application (/Applications/Belkin/Belkin Router Monitor.app)
    AdobeResourceSynchronizer    Application Hidden (/Applications/Adobe Reader.app/Contents/Support/AdobeResourceSynchronizer.app)
    Dropbox    Application (/Applications/Dropbox.app)
    Spotify    Application (/Applications/Spotify.app)
Internet Plug-ins: ℹ️
    FlashPlayer-10.6: Version: 16.0.0.305 - SDK 10.6 [Click for support]
    QuickTime Plugin: Version: 7.7.1
    AdobePDFViewerNPAPI: Version: 10.1.3 [Click for support]
    AdobePDFViewer: Version: 10.1.3 [Click for support]
    Flash Player: Version: 16.0.0.305 - SDK 10.6 Outdated! Update
    OfficeLiveBrowserPlugin: Version: 12.3.5 [Click for support]
    SharePointBrowserPlugin: Version: 14.4.7 - SDK 10.6 [Click for support]
    Silverlight: Version: 5.1.30514.0 - SDK 10.6 [Click for support]
    DirectorShockwave: Version: 12.1.3r153 - SDK 10.6 [Click for support]
    JavaAppletPlugin: Version: 14.9.0 - SDK 10.7 Check version
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
        22%    iTunes
         5%    ReportCrash
         2%    WindowServer
         1%    Microsoft PowerPoint
         1%    Google Chrome
Top Processes by Memory: ℹ️
    241 MB    Google Chrome
    137 MB    Google Chrome Helper
    107 MB    Microsoft PowerPoint
    103 MB    Dropbox
    94 MB    mds
Virtual Memory Information: ℹ️
    440 MB    Free RAM
    2.27 GB    Active RAM
    536 MB    Inactive RAM
    1.05 GB    Wired RAM
    8.03 GB    Page-ins
    908 MB    Page-outs
Diagnostics Information: ℹ️
    Mar 28, 2015, 12:01:57 PM    /Library/Logs/DiagnosticReports/Belkin Router Monitor & Setup_2015-03-28-120157_[redacted].crash
    Mar 28, 2015, 12:01:36 PM    /Library/Logs/DiagnosticReports/Belkin Router Monitor & Setup_2015-03-28-120136_[redacted].crash
    Mar 28, 2015, 12:01:36 PM    /Library/Logs/CrashReporter/Belkin Router Monitor & Setup_2015-03-28-120136_[redacted].crash
    Mar 28, 2015, 12:01:25 PM    /Library/Logs/DiagnosticReports/Belkin Router Monitor & Setup_2015-03-28-120125_[redacted].crash
    Mar 28, 2015, 12:01:14 PM    /Library/Logs/DiagnosticReports/Belkin Router Monitor & Setup_2015-03-28-120114_[redacted].crash
    Mar 28, 2015, 12:01:14 PM    /Library/Logs/CrashReporter/Belkin Router Monitor & Setup_2015-03-28-120114_[redacted].crash
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    Mar 28, 2015, 12:00:20 PM    /Library/Logs/CrashReporter/Belkin Router Monitor & Setup_2015-03-28-120020_[redacted].crash
    Mar 28, 2015, 12:00:20 PM    /Library/Logs/DiagnosticReports/Belkin Router Monitor & Setup_2015-03-28-120020_[redacted].crash
    Mar 28, 2015, 12:00:10 PM    /Library/Logs/DiagnosticReports/Belkin Router Monitor & Setup_2015-03-28-120010_[redacted].crash
    Mar 28, 2015, 12:00:10 PM    /Library/Logs/CrashReporter/Belkin Router Monitor & Setup_2015-03-28-120010_[redacted].crash
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    Mar 28, 2015, 11:59:20 AM    /Library/Logs/CrashReporter/Belkin Router Monitor & Setup_2015-03-28-115920_[redacted].crash
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    Mar 28, 2015, 11:59:09 AM    /Library/Logs/CrashReporter/Belkin Router Monitor & Setup_2015-03-28-115909_[redacted].crash
    Mar 28, 2015, 11:58:57 AM    /Library/Logs/DiagnosticReports/Belkin Router Monitor & Setup_2015-03-28-115857_[redacted].crash
    Mar 28, 2015, 11:58:57 AM    /Library/Logs/CrashReporter/Belkin Router Monitor & Setup_2015-03-28-115857_[redacted].crash
    Mar 28, 2015, 11:58:45 AM    /Library/Logs/CrashReporter/Belkin Router Monitor & Setup_2015-03-28-115845_[redacted].crash
    Mar 28, 2015, 12:01:45 PM    /Library/Logs/DiagnosticReports/Belkin Router Monitor & Setup_2015-03-28-120145_[redacted].crash
    Mar 28, 2015, 12:01:45 PM    /Library/Logs/CrashReporter/Belkin Router Monitor & Setup_2015-03-28-120145_[redacted].crash
    Mar 28, 2015, 12:01:03 PM    /Library/Logs/CrashReporter/Belkin Router Monitor & Setup_2015-03-28-120103_[redacted].crash
    Mar 28, 2015, 12:00:54 PM    /Library/Logs/DiagnosticReports/Belkin Router Monitor & Setup_2015-03-28-120054_[redacted].crash
    Mar 28, 2015, 12:00:54 PM    /Library/Logs/CrashReporter/Belkin Router Monitor & Setup_2015-03-28-120054_[redacted].crash
    Mar 28, 2015, 12:00:42 PM    /Library/Logs/DiagnosticReports/Belkin Router Monitor & Setup_2015-03-28-120042_[redacted].crash
    Mar 28, 2015, 12:00:42 PM    /Library/Logs/CrashReporter/Belkin Router Monitor & Setup_2015-03-28-120042_[redacted].crash
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    Mar 28, 2015, 11:59:20 AM    /Library/Logs/DiagnosticReports/Belkin Router Monitor & Setup_2015-03-28-115920_[redacted].crash
    Mar 28, 2015, 12:02:18 PM    /Library/Logs/DiagnosticReports/Belkin Router Monitor & Setup_2015-03-28-120218_[redacted].crash
    Mar 28, 2015, 12:02:06 PM    /Library/Logs/CrashReporter/Belkin Router Monitor & Setup_2015-03-28-120206_[redacted].crash
    Mar 28, 2015, 12:02:06 PM    /Library/Logs/DiagnosticReports/Belkin Router Monitor & Setup_2015-03-28-120206_[redacted].crash
    Mar 28, 2015, 12:01:57 PM    /Library/Logs/CrashReporter/Belkin Router Monitor & Setup_2015-03-28-120157_[redacted].crash
    Mar 28, 2015, 12:01:25 PM    /Library/Logs/CrashReporter/Belkin Router Monitor & Setup_2015-03-28-120125_[redacted].crash
    Mar 28, 2015, 12:01:03 PM    /Library/Logs/DiagnosticReports/Belkin Router Monitor & Setup_2015-03-28-120103_[redacted].crash
    Mar 28, 2015, 12:00:31 PM    /Library/Logs/CrashReporter/Belkin Router Monitor & Setup_2015-03-28-120031_[redacted].crash
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Update your Belkin router software along with Affinegy software.

After upgrading Yosetime my system is very slow. Safari webpages are not opening. I can go back to Mavericks again ?

After upgrading Yosetime my system is very slow. Safari webpages are not opening. I can go back to Mavericks again ?
Model Name: MacBook Air
Model Identifier: MacBookAir6,1
Processor Name: Intel Core i5
Processor Speed: 1.3 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache (per Core): 256 KB
L3 Cache: 3 MB
Memory: 4 GB

Hi ..
Better to troubleshoot Yosemite.
Not enough free storage space can slow your Mac down.
Click your Apple menu icon top left in your screen. From the drop down menu click About This Mac > More Info > Storage. Make sure there's at least 15% free disk space. OS X Tips Where did my Disk Space go?
As for Safari, might be a cookies, cache, extensions, or plug-ins issue.
From your Safari menu bar click Safari > Preferences then select the Privacy tab.
Click: Remove All Website Data
Then delete the cache.
Open a Finder window. From the Finder menu bar click Go > Go to Folder
Type or copy paste the following
~/Library/Caches/com.apple.Safari/Cache.db
Click Go then move the Cache.db file to the Trash.
Quit and relaunch Safari to test.
If that didn't help, from the Safari menu bar click Safari > Preferences then select the Extensions tab. Turn that OFF, quit and relaunch Safari to test.
If that helped, turn one extension on then quit and relaunch Safari to test until you find the incompatible extension then click uninstall.
If it's not an extensions issue, try troubleshooting third party plug-ins.
Back to Safari > Preferences. This time select the Security tab. Deselect: Allow plug-ins. Quit and relaunch Safari to test.
If that made a difference, instructions for troubleshooting plugins here.

My Mac is very slow to start up, or not starting at all

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