IMac wont open/start

after upgrade my iMac wont restart only gray screen comes out and cant see anything else.

Mac OS X- Gray screen appears during startup

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Intel imac wont start after changing permission

intel imac wont start after i changed my hard drive permission to let me read and write, then i clicked apply to all enclosed files.i turned it off no problem. then it never started up again in os x. the grey screen with apple logo appears,then after a minute it restarts, and will keep doing that if i let it. i can start up in windows xp, but i dont know how to do anything in windows xp that will affect os x. i can use the hard drive in target mode, but i cant figure out how that can help me. i use a macbook to view target disk. ive spent hours looking through help and support. finally i do not have the os install disks. PLEASE HELP!

My apologies for the inept instructions.
Restart normally. Open Terminal in the Utilities folder. Paste the commands in the Terminal application to avoid typos:
sudo su
Press RETURN. Enter your admin password when prompted. It will not be echoed to the screen. Press RETURN again. Now paste each of the following at the prompt and press RETURN after each.
chown root:admin /Applications
chmod 0775 /Applications
chown root:admin /Library
chmod 1775 /Library
chown root:admin /System
chmod 0775 /System
chown root:admin /Users
chmod 0775 /Users
chmod -R -N /Applications
chown -R :admin /Applications/*
Again, my apologies.

Itunes wont open and when re-installed received this msg: Service Apple mob device failed to start. You have insufficent privileges to start system svc. Help?

Itunes wont open and when re-installed received this msg: Service Apple mob device failed to start. You have insufficent privileges to start system svc. Help?

Download Itunes from Apple.com, not from within Itunes.
Redo the install, following the below procedure. However, when you re-install Itunes, right click and run the install as administrator. For Win 7, you have to hold down the cntrl and shift keys when you right click and then "run as administrator" will be an option.
Go to Control Panel > Add or Remove Programs (Win XP) or Programs and Features (Vista, Win 7 & later)
Remove all of these items in the following order:
iTunes
Apple Software Update
Apple Mobile Device Support (if this won't uninstall move on to the next item)
Bonjour
Apple Application Support
Reboot, download iTunes, then reinstall, either using an account with administrative rights, or right-clicking the downloaded installer and selecting Run as Administrator.
The uninstall and reinstall process will preserve your iTunes library and settings, but ideally you would back up the library and your other important personal documents and data on a regular basis. See this user tip for a suggested technique.
Please note:
Some users may need to follow all the steps in whichever of the following support documents applies to their system. These include some additional manual file and folder deletions not mentioned above.
HT1925: Removing and Reinstalling iTunes for Windows XP
HT1923: Removing and reinstalling iTunes

Safari wont open on my imac please help

i installed the new sarafi and it wont open. it says it is to new for my imac but my imac is only a year old ... please help

Use the combo updater to update to 10.5.8 and it will work.
The Combo updater of Leopard 10.5.8 can be found here:
http://support.apple.com/downloads/MacOS_X_10_5_8_ComboUpdate

Everytime I start my iMac it opens several windows. I don´t know what to do to prevent this.

Everytime I start my iMac it opens several windows: Word, Excel, etc. I don´t know how to prevent this. I have to spend several minutes everytime closing 5 or 6 windows. I close everything before I sign out so I don´t know what to do. Please help.

In addition, OS X Lion includes a function referred to as Resume, where it will automatically re-open any app left running when the machine was shut down or restarted.
To prevent that from happening, you can uncheck the item in the shutdown or restart splash screen which refers to re-opening running apps. Unfortunately, this has to be done every time.
The alternative is to get in the habit of quitting all apps before shutting down or restarting.
Note that in the user's guide Apple suggests not shutting the machine down unless it will be unused for more than a few days. Not sure how many 'few' is in that context, but since I use mine every day I never shut it down (unless there's an electrcal storm in the area).

My startup DVD that came with my Imac wont mount so I cant start up from it to run disk utility

my startup DVD that came with my Imac wont mount so I cant start up from it to run disk utility

Check that your computer is compatible with Mountain Lion/Mavericks.
To check the model number hold down the option/alt key, go to the Apple menu and select System Information.
iMac (Mid 2007 or newer) model number 7,1 or higher
MacBook (Late 2008 Aluminum, or Early 2009 or newer) model number 5,1 or higher
MacBook Pro (Mid/Late 2007 or newer) model number 3,1 or higher
MacBook Air (Late 2008 or newer) model number 2,1 or higher
Mac mini (Early 2009 or newer) model number 3,1 or higher
Mac Pro (Early 2008 or newer) model number 3,1 or higher
Xserve (Early 2009) model number 3,1 or higher
Your Mac needs:
OS X v10.6.8 or OS X Lion already installed
2 GB or more of memory (More is better - 4 GB minimum seems to be the consensus)
8 GB or more of available space
Check to make sure your applications are compatible. PowerPC applications are no longer supported after 10.6.
Application Compatibility
Applications Compatibility (2)

HT1455 imac wont start up and grey screen with spinning wheel appears

imac wont start up and grey screen with spinning wheel appears

See this Apple note on steps to take.

TS1367 my imac wont start

my imac wont start

I have the same problem, cannot solve it for you but maybe as i will have to take it to the apple store for service.
what was you doing with it before it failed ?

Imac wont start stuck on apple logo lion

imac wont start its stuck ont the apple logo with loading ring just keeps spinning im running lion its a 2009 imac

If 10.7.0 or later...
Bootup holding CMD+r, or the Option/alt key to boot from the Restore partitirion & use Disk Utility from there to Repair the Disk.
If that doesn't help Reinstall the OS.

I changed the date on my mac to 1995 now date and time or start up disks wont open what can i do?

i changed the date on my mac to 1995 now date and time or start up disks wont open what can i do?

Many system actions will misbehave, given an inaccurate date. If you cannot open System Preferences you can reset your system date and time using Terminal.
Please read everything that follows before proceeding. Write them down if necessary because the effects of setting a preposterous system date are unpredictable.
Quit System Preferences, force quit if necessary: OS X: How to quit an unresponsive application using Force Quit
Open Terminal - it is in your Utilities folder and looks like this
You can find Terminal by using the Finder's Go menu and choosing Utilities, then double-click the Terminal icon.
At the prompt, you will be typing a command resembling the following:
sudo date mmddhhnnyyyy
... but you must substitute the actual date and time in the command that corresponds to the date format used for your location. In other words if your custom is to use a date like 16 December 2013 then reverse the mm and dd values.
Substitute numerals in the above command according to the following:
mm = month
dd = date
hh = hour (24 hour format)
nn = minutes past the hour
yyyy = year
Each of those values must be two digits except for the year which can be two or four digits. As an example if the current date and time is December 16, 2013 at 9 PM your command will be the following:
sudo date 121621002013
or
sudo date 1216210013
Either one will work.
To recover from your inability to use System Preferences to set the date and time, the value entered does not have to be precise, it just has to be approximate.
Enter that command using the actual time and date for your location and in the appropriate format, then press the Return key. Terminal will ask for your Admin Password - the same one you use when you log in to your Mac. Type it and then press the Return key. What you type will not appear, not even with •••• characters.
To determine if your change was effective just type the date command and press the Return key. Terminal will reply with the date and time. If it appears correct and in the correct format, you should be able to open System Preferences > Date & Time once again. Selecting the "Set time and date automatically" and choosing an appropriate time server will adjust your Mac's system clock to the precise time.

I purchased a book on my ipad and im trying to retrieve it on my imac and it wont open on my computer

i purchased a book on my ipad and im trying to retrieve it on my imac and it wont open on my computer

Ibooks are ONLY for use on ipod touch, iphone and ipad.
You can indeed store books on your computer, but you cannot read them there

Mail and contacts wont open on imac also runs slow

Mail wont open contacts wont open rus very slow help

Boot from your recovery partition (command-R at startup) and select Get Help Online. Safari will launch. Is it slow?

Imac system accounts wont open

I have try almost everything but it just wont open so if any body has anything in mind please tell me.

What is the problem, exactly. It refuses the password or something else?

I have an imac and have just changed my internet to wifi but safari wont open, and suggestions

I have changed my internet to wifi and now my safari page wont open any suggestions please?
Do i need to change a setting or something?

Suggest you update the OS to 10.8.3.
Apple Menu / Software Update. Do this twice, once to get 10.8.3 and then to see what else there is that 10.8.3 needs. Perhaps a newer version of Safari?
My version of Safari is 6.0.3

After power failure iMac wont start up

I had an unexpected power outage yesterday and since that happened, I cannot get my iMac G5 to start up. I can only get as far as the gray screen. I've tried the command option P R and holding down the power button for 10 seconds and several other things, and I cant get beyond that gray screen. Im currently running Tiger on it and thought maybe I could reinstall the operating system? Ive had other power failures before and have never experienced anything like this that I couldnt start the computer. Any suggestions would be greatly appreciated! Thank you!

Hi Kelly,
Do you have your data backed up? If not, do this as soon as possible.
Have you disconnected your Mac from the wall plug and let it sit about 10 or 15 minutes?
Have you tried starting in safe mode?
Have you tried booting from your install disks and running DIsk Utility "Repair Disk"?
There is always the possibility of a power outage taking out a hard drive. Especially if it is writing at the time, I recently lost one the same way. Mine had bad blocks that could not be formatted out, so I had to replace it.
Hopefully your situation is not as bad. Let us know.

IMac wont open/start

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