When I turn on my IMAC shows a blue screen

When I turn on my IMAC shows a blue screen

You'll have to provide more information if you want a reasonable answer to your problem.
Model
Operating System
Do you have your original install disks?
Try inserting disk and start machine while holding "C"
Does it startup?

Similar Messages

  • I have the mac book air and when I turn it on its a light blue screen with a flashing folder with a question mark on it and I cant get past it. Anyone know about this?

    I have the mac book air and when I turn it on its a light blue screen with a flashing folder with question mark on it. Any one know how to get past it?

    The MBA is trying to tell you that it is not able to find a bootable system
    Either the file is corrupt or access to the storrage has failed
    I would start by seeing if it will boot with Command + R depressed

  • My mac book aire just hang... i tried shutting it off but when i turned it on i am on blue screen i can hear the sounds but it wont show anything please help thanks

    i was browsing the internet and using skype when my mac book air hang
    i tried turning it off but when i reboot it again its on blue screen
    i can hear its sounds but cannot see anything
    please help

    Try resetting both SMC (http://support.apple.com/kb/HT3964) and NVRAM (http://support.apple.com/kb/HT1379).

  • When I turn on my Macbook, only a blue screen appears with no Dock or info in the menu bar

    When I went to turn on my Macbook OS X today, only a blue background showed up. For some reason the only program that opened was Bittorrent and besides that in the menu bar at the top there is nothing on the screen. The dock wont appear even if I hold my mouse down over where it should be. There is no time display in the menu bar. I can open single applications at a time by clicking on the apple icon in the left corner of the menu bar and selecting "recent items" but other than that nothing else works. When I go into "system preferences" and try to click different display options for the dock and menu bar such as the clock, it won't let me select it.
    I tired booting up the computer in "safe mode" and everything was fine, but then when I went to do a regular start up the same problem occurred.
    Has any one else seen this problem.

    Try running this program and then copy and paste the output in a reply. The program was created by Etresoft, a frequent contributor.  Please use copy and paste as screen shots can be hard to read.
    Etrecheck – System Information

  • When I turn on my iMac, it shows a black screen and says 'No bootable device - enter boot cd and press any key'.  Not sure how to fix this.

    When I turn on my iMac, it shows a black screen and says 'No bootable device - enter boot cd and press any key'.
    I'm not sure what to do, I did not recieve a cd with my mac to boot it up (I ordered it online).
    Also I can't find my harware serial number (I've tried many times to input what I thought it may be from my receipt).  I saw that I need this number to contact apple support, my 90 day complimentary support is still valid so I wish to contact them.
    I don't know much about apple products as this is my first apple computer so any information is helpful.

    Hold down the Alt/Option-key at startup of your iMac to get the Boot Selection screen.
    From that choose to boot into OSX.
    Once in OSX go to System Preferences then Startup Volume and reset your OSX to be the default.
    The new iMacs have OSX 10.7 Lion preinstalled and don't come with any CD/DVD anymore.
    Instead OSX Lion includes a new feature called "Lion Recovery".
    Have a read here About Lion Recovery
    Stefan

  • When I turn on my iMac the white start up screen appears but then it goes onto a black screen

    When I turn on my iMac, the white start up screen comes on with the noise. Then when it's supposed to show my accounts the screen goes black but I can still use the mouse?

    Startup in Safe Mode
    http://support.apple.com/kb/PH14204
    Reset SMC.     http://support.apple.com/kb/HT3964
        Choose the  appropriate method.

  • When I turn on my iMac it comes up with the icon which I then log into. The password works and I then get the apple icon and the spinning wheel. After a minute it turns into a prohibited icon. If I log on the guest icon I get to Safari. Help!

    When I turn on my iMac it comes up with the login icons which I then choose and log into. The password works and I then get the apple icon and the spinning wheel. After about a minute the Apple icon turns into a prohibited icon. However, if I log in under the guest icon, I can access the wifi and get to Safari. I really don't know what to do next. Any help would be gratefully appreciated.

    Are you running any A-V? If it's an iMac 21.5, I don't think you're running Leopard, 10.5. Probably at least Snow Leopard, 10.6. This is the Leopard forum.
    This article says meant for 10.3.9 and eariler, but contains some still useful suggestions.
    http://support.apple.com/kb/TS1411
    Try a Safe Boot. Shift at the startup chime and expect a much longer time to boot. This will bring you to a login screen with "Safe Boot" in red.
    Look at this as well.
    http://support.apple.com/kb/TS1417

  • My macbook pro is not working properly , when is turned on after then show apple logo and continue show this or nothing.

    my macbook pro is not working properly , when is turned on after then show apple logo and continue show this or nothing

    Gray, Blue or White screen at boot, w/spinner/progress bar

  • When I turn on my imac all I see is a white screen, the apple icon and a spinning pin-wheel that never stops spinning.  My computer is stuck!  Any Suggestions?

    When I turn on my imac all I see is a white screen, the apple icon and a spinning pin-wheel that never stops spinning.  My computer is stuck!  Any Suggestions?

    Follow all the steps at > Mac OS X: Gray screen appears during startup

  • When i turn on my iMac its sounds like a light bulb struguling

    When i turn on my iMac its sounds like a light bulb struguling

    Not sure what a struggling light bulb sounds like. It is very hard to describe sounds sometimes. Is it an electrical buzzing or crackling sound? Does the computer still startup normally after the sound? You have Lion so I wonder if it is a new iMac. If so, call AppleCare.

  • When I turn on my iMac

    When I turn on my Imac my email messages open as well as Word - Ive no idea how to stop this from happenin?

    System Preferences > General > Restore windows when quitting... : off

  • When I turn on my IMac it can not find the my wireless network automatically, I have select it manually, even with apple support problem still exist.

    When I turn on my Imac it can not find my wireless network automacally, I have to seclect it manually.  Apple support has not been apple to find the problem.  I also have an MacBook Pro and have no problem with this laptop finding my network everytime.  Does anyone else have this problem. This problem started within the last month.

    Lot's of people reporting Wifi problems with 10.7.4, but some things to try...
    Make a New Location, Using network locations in Mac OS X ...
    http://support.apple.com/kb/HT2712
    10.5.x/10.6.x/10.7.x instructions...
    System Preferences>Network, click on the little gear at the bottom next to the + & - icons, (unlock lock first if locked), choose Set Service Order.
    The interface that connects to the Internet should be dragged to the top of the list.
    Instead of joining your Network from the list, click the WiFi icon at the top, and click join other network. Fill in everything as needed.

  • How do you silence the opening chord when you turn on the iMac?

    How do you silence the opening chord when you turn on the iMac?

    Welcome to Apple Support Communities
    I do not recommend you to disable the startup sound. It indicates hardware problems when your computer is not working correctly, so it is important to leave it turned on. What you can do is to reduce the volume in OS X.
    Anyway, if you want to disable the startup sound, the easiest way is to turn off the volume in OS X.

  • Hello! I bought sony tablet. when I turns it on it shows sign "sony" and that's it than black sreen.

    Hello! I bought sony tablet. when I turns it on it shows sign "sony" and that's it than black sreen. can anyone help me with it?

    Hi nutochka,
    Try these troubleshooting steps.
    IMPORTANT:Before starting this procedure, make sure the AC adapter is connected to the tablet charge connector and is plugged into a working wall outlet.
    NOTE: Because each of these steps represents a possible solution to this issue, check the tablet status after completing each step.
    Press and hold the power button for at least thirty seconds.
    NOTE: If the tablet turns off, press the power button again to turn the tablet back on. If the tablet turns on, you should be able to use it normally. If it does not turn on, proceed to the next step.
    If tablet is still frozen or not responding, you will need to follow these steps to initiate a forced External Data Reset procedure.
    IMPORTANT: Unfortunately, because it is being reset to the condition it was in when it was first purchased, all of the data and settings will be erased from the tablet.
    With the tablet completely off, press and hold the Volume Up (+) button, and while continuing to hold that button, press and hold the Power button for several seconds.
    Once the Sony logo appears, let go of the Power button.
    Continue to hold the Volume Up (+) button until the Android system recovery screen is displayed. Once that screen is displayed, release the Volume Up (+) button.
    IMPORTANT: Sometimes starting to the Android system recovery screen is enough to return the tablet to normal condition, and a forced External Data Reset procedure may not be needed. For this reason we recommend that you quickly press the Power button in order to cancel the reset and restart the tablet. If the tablet turns on and you are able to use it normally, no further action is necessary. If the tablet still does not operate normally, repeat steps 1-3 above and then proceed with the next step.
    In the Android system recovery screen, use the Volume Down (-) button to highlight the Reset to factory settings option.
    Quickly press the Power button.
    In the Reset to factory settings: Confirm reset screen, use the Volume Down (-) button to highlight the Yes -- delete all user data option.
    Quickly press the Power button.
    The troubleshooting steps listed above should resolve your issue. If you have completed all of the steps and the issue is not resolved, service may be required.
    If my post answers your question, please mark it as an “Accepted Solution”.

  • Fan comes on when I turn on the iMac

    When I turn on the iMac, a fan comes on. It doesn't turn off. What does this mean

    It might mean a lot of things: from a damaged sensor to a SMC problem. First, try resetting the SMC > http://support.apple.com/kb/HT3964 This should solve the problem if it's related to a problem with SMC settings.
    If it doesn't work, it's possible that a sensor is damaged. To make sure of it, run Apple Hardware Test > http://support.apple.com/kb/HT1509?viewlocale=en_US&locale=en_US After starting in Apple Hardware Test, choose your language, mark the option to use extended mode (important) and start the test. If you see an error at the end of the test, copy it here

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