Imac is completely locked up

Our computer is completely locked up.  We have tried to shut it down completley by turning it off at the electrical source. but when rebooted, still has same pages on screen and cursor will not click on anything.  The box for preferred network appears, bit unable to click on our network. Cannot close down e-mail inbox, but new e-mails are able to be added to inbox.

Which iMac and whidh OS?

Similar Messages

  • Power Mac G4 MDD 1.25GHz DP often completely locks up in the first few minutes after booting, sometimes with the spinning beach ball, normally with a very high pitched whining noise.

    Over the last few months my Mac has developed a worrying habit.
    Within the first few minutes of starting it up (perhaps on average about 50% of the time) it will completely lock up. This may happen at the Log In screen (if I start up the Mac & then leave it for a while) or during normal use.
    Often the first symptom is a very high pitched (but quiet) whining noise that seems to come from the loud speaker on the front of the Mac. The pointer may freeze at this point, or it may still be moveable for 5 or 10 seconds before it freezes. It sometimes turns into the spinning beach ball during this. Once locked up the only way I can restart the Mac is to hold down the power button on the front for a few seconds to completely reboot the machine.
    Once the Mac has restarted, it usually behaves normally, almost always for the rest of the day. The initial lock up & resulting restart only normally seem to happen the first time I use the Mac that day.
    The only peripherals attached to the Mac (apart from the display, keyboard & mouse) are an ADSL modem, a USB printer and a pair of Apple Pro speakers, and this setup hasn't changed since long before the problems started, so I'm confident that I can discount the peripherals causing problems. I doubt that unplugging the speakers, for example, would have any effect.
    I've run Disc Utility, OnyX and DiscWarrior without anything major cropping up. My instincts (I've been troubleshooting Mac problems for 16 years) tell me that I have a fundamental hardware problem, possibly with one of the 4 RAM DIMMs installed.
    The RAM configuration is shown in the attached screen grab.
    I'm considering removing one DIMM, running with 1.5GB of RAM rather than 2GB for a while, and repeating with a different DIMM removed each time until I can hopefully isolate the dodgy DIMM.
    Do people feel this is a sensible approach, or should I try something else first?
    Many thanks.

    Sometimes visual inpection will show bulging tops/sides., my guess is if it is it's most likely in the PSU.
    Possible cheap fix, You can convert an ATX PSU for use on a G4...
    http://atxg4.com/mdd.html
    http://atxg4.com/

  • How do i use and iphone with the ios7 if the phone is completely locked and i dont know the previous owner?

    how do i fix a phone that is completly locked bc of the ios7? i dont know the previous ower? and i dont know if the phone is stollen.

    You don't get it to work. You can not bypass the activation lock. Do you not know who you bought it from? Talk to them. If they can't give you the credentials to unlock it, get your money back. The phone is useless.

  • HT1459 my ipod touch 4th generation is completely locked out. its not being recognised in itunes for us to do a restore. how can we reset the ipod?

    can anyone help with a completely locked down ipod touch 4th generation? its not being recognised in itunes!!!

    Download RecBoot and see if that will kick it out of recovery mode.
    Try doing a manual install following the instructions in the link below.
    Basic troubleshooting steps. 
    17" 2.2GHz i7 Quad-Core MacBook Pro  8G RAM  750G HD + OCZ Vertex 3 SSD Boot HD 

  • Every time when Firefox is minimized and I tab into it I can't use it. It's completely locked. Is there a way to fix this?

    Every time when Firefox is minimized to the tray and I open it up again i can't use it until I click on a tab that's not focused or on the search field with the mouse. It's completely locked, I can't press ctrl+1/2/3 etc to change tab or ctrl+e to go to search. Last time everything worked like it should was on release 3.5.14
    Is there a way to fix this?
    Edit: I've tried reinstalling Firefox and gotten a new profile, that didn't help.
    Edit2: Updated to 3.6.9 and I still have the problem.
    Edit3: Just installed 3.6.11, the problem is still there.
    I can't understand how 3.5.14 can work and not a singel release after that.
    Opera here I come, soon...

    - Try cleaning out/blowing out the headphone jack. Try inserting/removing the plug a dozen times or so.
    If still problem that indicates you have a bad headphone jack.
    Apple will exchange your iPod for a refurbished one for this price. They do not fix yours. Likely not worth it for your old 2G iPod
    Apple - iPod Repair price                  
    A third-party place like the following will replace the jack for less. Google for more.
    iPhone Repair, Service & Parts: iPod Touch, iPad, MacBook Pro Screens
    Replace the jack yourself
    iPod Touch Repair – iFixit

  • My HP 2210 printer has completely locked up

    My HP 2210 printer has completely locked up, all lights are on, not blinking, and no response from any buttons.  Only message I get is no printer connected...help...please!

    Hello,
    If you pull out the power cord from the rear of the printer and then reconnect it, does it go to the same error state?
    If you have this plugged into a power strip, connect it directly to a wall outlet.
    Thank you
    I was an HP employee.
    Kudos are appreciated if I have helped you.

  • My iMac started and locked onto a white screen. Rebooted and all was well. How do you do a safe start i.e. what key do you press?

    My iMac started and locked onto a white screen. Rebooted and all was well. How do you do a safe start i.e. what key do you press?

    It should according to http://support.apple.com/kb/ht1455. Review that and try again.

  • Ipod completly locked up. dont know pass code,id, or anything. need to reset but dont know how. please help.

    ipod completely locked up. dont know pass code or anything. belongs to my 8 year old who likes to play around in settings. needs reset or something, but i dont know how. please

    http://support.apple.com/kb/ht1212
    Basic troubleshooting steps  
    17" 2.2GHz i7 Quad-Core MacBook Pro  8G RAM  750G HD + OCZ Vertex 3 SSD Boot HD 
    Got problems with your Apple iDevice-like iPhone, iPad or iPod touch? Try Troubleshooting 101
     In Memory of Steve Jobs 

  • I just upgraded to Yosemite now my iMac it's locked

    I just upgraded to Yosemite now my iMac it's locked what do i need to do to unlock it?

    Problem  resolved by removing the RAM (2 sticks and replace it with 2 new ones )  and also replace the SSD also with a new one and problem fix

  • Bought a used imac but its locked by old username and password

    bought a used imac but its locked by old username and password

    The first thing you should do with a second-hand computer is to erase the internal drive and install a clean copy of OS X. How you do that depends on the model. Look it up on this page to see what version was originally installed.
    If the machine shipped with OS X 10.4 or 10.5, you need a boxed and shrink-wrapped retail Snow Leopard (OS X 10.6) installation disc, which you can get from the Apple Store or a reputable reseller — not from eBay or anything of the kind. If the machine has less than 1 GB of memory, you'll need to add more in order to install 10.6. I suggest you install as much memory as it can take, according to the technical specifications.
    If the machine shipped with OS X 10.6, you need the installation media that came with it: gray installation discs, or a USB flash drive for some MacBook Air models. If you don't have the media, order replacements from Apple. A retail disc, or the gray discs from another model, will not work.
    To boot from an optical disc or a flash drive, insert it, then reboot and hold down the C key at the startup chime. Release the key when you see the gray Apple logo on the screen.
    If the machine shipped with OS X 10.7 or later, you don't need media. It should boot into Internet Recovery mode when you hold down the key combination option-command-R at the startup chime. Release the keys when you see a spinning globe.
    Once booted from the disc or in Internet Recovery, launch Disk Utility and select the icon of the internal drive — not any of the volume icons nested beneath it. In the Partition tab, select the default options: a GUID partition table with one data volume in Mac OS Extended (Journaled) format. This operation will permanently remove all existing data on the drive, which is what you should do.
    After partitioning, quit Disk Utility and run the OS X Installer. When the installation is done, the system will automatically reboot into the Setup Assistant, which will prompt you to transfer the data from another Mac, its backups, or from a Windows computer. If you have any data to transfer, this is usually the best time to do it.
    You should then run Software Update and install all available system updates from Apple. If you want to upgrade to a major version of OS X newer than 10.6, buy it from the Mac App Store. Note that you can't keep an upgraded version that was installed by the previous owner. He or she can't legally transfer it to you, and without the Apple ID you won't be able to update it in Software Update or reinstall, if that becomes necessary. The same goes for any App Store products that the previous owner installed — you have to repurchase them.
    If the previous owner "accepted" the bundled iLife applications (iPhoto, iMovie, and Garage Band) in the App Store so that he or she could update them, then they're linked to that Apple ID and you won't be able to download them without buying them. Reportedly, Apple customer service has sometimes issued redemption codes for these apps to second owners who asked.
    If the previous owner didn't deauthorize the computer in the iTunes Store under his Apple ID, you wont be able toauthorize it under your ID. In that case, contact iTunes Support.

  • HT3986 My iMac becomes completely window system. How can I go back to Lion OS?

    My iMac becomes completely window system. How can I go back to Lion OS?

    Welcome to Apple Communities
    To use OS X Lion, go to Control Panel > System and Security > Boot Camp and select the Lion partition to boot, or press Option key in boot and select your OS X partition

  • HT1338 iMac goes completely black

    Hello, sometimes my iMac goes completely black. Any ideas on what is the problem and what could be done?

    Hi there harris.jae,
    You may find the troubleshooting steps in the article below helpful.
    Apple computers: Troubleshooting issues with video on internal or external displayshttp://support.apple.com/kb/ht1573
    -Griff W. 

  • I had my iPhone stolen and I wonder if I would be possible to completely lock the device, preventing the thief turned the phone again?

    I had my iPhone stolen and I wonder if I would be possible to completely lock the device, preventing the thief turned the phone again?

    You can lock the device to prevent them from getting to your personal information if you set up mobileme, but unfortunately all the theif has to do is a forced restore and set up as new, get a new SIM and use it.

  • JavaScript for completely locking pdf after digitally signing

    I currently use both Abobe Acrobat XI and Livecycle Designer ES4.
    When i want to add the option to completely lock down a document after digitally signing (inc disabling of the 'clear signature' option) i execute javascript within the properties of the digital signature which works fine no problem.
    Im lead to believe that Livecycle will remove any scripting from a pdf created within acrobat as it uses its own flavour so to speak.
    My question is, does anybody know what the Livecycle equivalent is to have the option of locking after signing (as image) and disable the 'clear signature' feature post signing?
    Any feedbcak is appreciated.

    Not sure where your pic is from.  But in LC Designer you can specify what you want locked after signing.

  • Completely locked iphone 5

    How do you unlock my iphone 5 if it is completely locked up? and says connect to itunes? I NEED HELP QUICK!!

    Connect to iTunes on the computer you usually Sync with and “ Restore “...
    http://support.apple.com/kb/HT1414
    If necessary Place the Device into Recovery mode...
    http://support.apple.com/kb/HT1808
    You may need to try this More than Once...
    Be sure to Follow ALL the Steps...

Maybe you are looking for