Installed itunes 10.7 today but the restart is frozen at the white screen with the rotating wheel. Any help is appreciated.

I installed itunes upgrade (10.7, I think) today but the restart is frozen at the white screen with the revolving wheel. Any suggestions?

Thanks for your reply
I tried Disconnect devices and network cables nothing
I can't Perform a Safe Boot i press shift key but nothing
I tried Reset the NVRAM / PRAM nothing
Now i am downloading lion os again "god help me"
For this step Start from your Mac OS X Install disc; use Disk Utility
(why apple stop Mac OS X Install disc ??? it is not a good idea )
Check your cables and power source
It is ok
Remove third-party RAM and internal hardware
Did not upgrade
Is there another fixes in case i couldn't download Lion os

Similar Messages

I downloaded the cocoPpa app for my iPhone and created shortcuts, it's now frozen on a white screen with the status bar it's not restarting but will do most normal functions that don't invoke leaving the page( except locking). Can anybody help?

Does anyone know what to do?

Basic troubleshooting from the User's Guide is reset, restart, restore (first from backup then as new). Try each of these in order until the issue is resolved.

I've tried to set up a new user on a mac book pro and i restarted it to create the new account but now all i can get is a white screen with the apple logo and the loading symbol what can i do ?

i've tried to set up a new user on a mac book pro and i restarted it to create the new account but now all i can get is a white screen with the apple logo and the loading symbol what can i do ?

Look at this support article:
http://support.apple.com/kb/ts2570
Ciao.

Installing IOS 8 on my iPad stuck on white screen with the apple. Help please?

I'm in the process of installing IOS 8 on my iPad 3, and it is still on the white screen with the apple. It has been on this screen for 24 hours now with no change. Can anyone help?

If it has NEVER been jailbroke, here are some standard repair procedures:
First, try a system reset. It cures many ills and it's quick, easy and harmless...
Hold down the on/off switch and the Home button simultaneously until you see the Apple logo. Ignore the "Slide to power off" text if it appears. You will not lose any apps, data, music, movies, settings, etc.
If the Reset doesn't work, try a Restore. Note that it's nowhere near as quick as a Reset. It could take well over an hour! Connect via cable to the computer that you use for sync. From iTunes, select the iPad/iPod and then select the Summary tab. Follow the on-screen directions for Restore and be sure to say "yes" to the backup. You will be warned that all data (apps, music, movies, etc.) will be erased but, as the Restore finishes, you will be asked if you wish the contents of the backup to be copied to the iPad/iPod. Again, say "yes."
At the end of the basic Restore, you will be asked if you wish to sync the iPad/iPod. As before, say "yes." Note that that sync selection will disappear and the Restore will end if you do not respond within a reasonable time. If that happens, only the apps that are part of the IOS will appear on your device. Corrective action is simple - choose manual "Sync" from the bottom right of iTunes.
If you're unable to do the Restore (or it doesn't help), go into Recovery Mode per the instructions here. You WILL lose all of your data (game scores, etc,) but, for the most part, you can redownload apps and music without being charged again. Also, read this.

My iphone wont open, i even recovered it but to no avail, all it does is go to the white screen with the apple logo then turn off again

Hey everyone,
This morning i took my phone out of the charger and everything was normal however, once i got in the car i looked at my phone and realized it was turned off. I tried turning it on again as well but all it does is going to the start up screen (The white screen with the apple logo) and then it turns off again as well. I also put it on the charger but it does the same thing but repeatedly. So it just goes to the white screen and off again. At last i resorted to recovering my phone even if it meant losing all my data. Slow internet connection meant it took all night but in the morning i recovered and everything and got to the last step ( It told me its finished but i should leave my phone connected to itunes and it will pop up there) but all that popped up was an error screen. It still broken but now sometimes when i try to turn it on the same white screen with the logo comes on with a bar under it. this bar fills up a little then the screen goes black again. Is there any other way i can try to fix this?
P.S. There are no apple stores in my area so i took it to one of the phone stores here and even they said they couldnt do anything about it

Try:
- iOS: Not responding or does not turn on
- If not successful and you can't fully turn the iPod fully off, let the battery fully drain. After charging for an least an hour try the above again.
- If still not successful that indicates a hardware problem and an appointment at the Genius Bar of an Apple store is in order.

My phone keeps displaying a white screen with the apple, then occasionally flicks to a blue screen, but won't turn on! HELP!!

My phone keeps displaying a white screen with the apple, then occasionally flicks to a blue screen, but won't turn on! HELP!! I have had it on charge all day and have tried plugging it in to my computer to sync.

Restore your software using iTunes.
Turn your device off and connect your cable to the computer, but not the device just yet. Start up iTunes. Now, hold down the home button on your device and plug it in to the cable - don't let go of the button until iTunes tells you it's detected a device in recovery mode. Now you can restore to factory settings.
You should be able to restore your backup file after this procedure. If the problem comes back, you either have corruption in your backup file, or a serious hardware problem that should be looked at by a tech at the Genius Bar (make an appointment first).

Macbook does not shut down or restart. It stops at an blank white screen with the cursor moving around it. Updated to the latest software

I have a Macbook Air 13.3" 2012 model. For a couple of days my Macbook does not shuts down. It just stops at a blank white screen with the cursor still hovering around it. I have to shut it down forcefully every time using the power button.

These instructions must be carried out as an administrator. If you have only one user account, you are the administrator.
Launch the Console 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.
☞ Open LaunchPad. Click Utilities, then Console in the icon grid.
Step 1
For this step, the title of the Console window should be All Messages. If it isn't, select
          SYSTEM LOG QUERIES ▹ All Messages
from the log list on the left. If you don't see that list, select
          View ▹ Show Log List
from the menu bar at the top of the screen.
In the top right corner of the Console window, there's a search box labeled Filter. Initially the words "String Matching" are shown in that box. Enter "BOOT_TIME" (without the quotes.)
Each message in the log begins with the date and time when it was entered. Note the timestamps of the BOOT_TIME log messages, which refer to the times when the system was started. Now clear the search box and scroll back in the log to the last boot time when you had the problem. Select the messages logged before the boot, during the time something abnormal was happening. Copy them to the Clipboard by pressing the key combination command-C. Paste into a reply to this message by pressing command-V.
For example, if the system was unresponsive or was failing to shut down for three minutes before you forced a restart, post the messages timestamped within three minutes before the boot time, not after. Please include the BOOT_TIME message at the end of the log extract—not at the beginning.
If there are long runs of repeated messages, please post only one example of each. Don’t post many repetitions of the same message.
☞ When posting a log extract, be selective. A few dozen lines are almost always more than enough.
☞ Some private information, such as your name, may appear in the log. Anonymize before posting.
Please don't indiscriminately dump thousands of lines from the log into this discussion.
Please don't post screenshots of log messages—post the text.
Step 2
In the Console window, select
          DIAGNOSTIC AND USAGE INFORMATION ▹ System Diagnostic Reports
(not Diagnostic and Usage Messages) from the log list on the left. If you don't see that list, select
          View ▹ Show Log List
from the menu bar.
There is a disclosure triangle to the left of the list item. If the triangle is pointing to the right, click it so that it points down. You'll see a list of reports. A crash report has a name that begins with the name of the crashed process and ends in ".crash". A panic report has a name that begins with "Kernel" and ends in ".panic". A shutdown stall report has a name that ends in ".shutdownstall". Select the most recent of each, if any. The contents of the report will appear on the right. Use copy and paste to post the entire contents—the text, not a screenshot. It's possible that none of these reports exists.
I know the report is long, maybe several hundred lines. Please post all of it anyway.
☞ If you don't see any reports listed, but you know there was a crash or panic, you may have chosen Diagnostic and Usage Messages from the log list. Choose DIAGNOSTIC AND USAGE INFORMATION instead.
In the interest of privacy, I suggest that, before posting, you edit out the “Anonymous UUID,” a long string of letters, numbers, and dashes in the header of the report, if it’s present (it may not be.)
☞ Please don’t post other kinds of diagnostic report—they're very long and rarely helpful.

I Mac freeze: When powered on all I get is a blank white screen with the apple logo. No "beach ball" nothing more. Tried all the usual restarts. Help?

I Mac freeze: When powered on all I get is a blank white screen with the apple logo. No "beach ball" nothing more. Tried all the usual restarts. Help?

Tried all the usual restarts. Help?
Care to share?
Please detail ALL you have done so far in the way of troubleshooting? Need this info to avoid the been there done that scenarios.
===========
Your profile is a complete blank!!!!
When posting in Apple Communties/Forums/Message Boards.......It would help us to know which Mac model you have, which OS & version you're using, how much RAM, etc. You can have this info displayed on the bottom of every post by completing your system profile and filling in the information asked for.
CLICKY CLICK-----> Help us to help you on these forums
***This will help in providing you with the proper and/or correct solutions.***

After using my iPod classic in my infinity G35 a few weeks ago, I took it out of the car and it no longer works. Just a white screen with the web address for Apple iPod support. Worked fine when hooked up to iPod jack in car. But wont work anywhere now

After using my iPod classic in my infinity G35 a for the last few weeks, I took it out of the car and it no longer works. Just a white screen with the web address for Apple iPod support. Worked fine when hooked up to iPod jack in car. But won't work anywhere now. I tried re-setting but has not worked. Any ideas would be appreciated.

I finally resolved my problem after spending way too much time on it. I simply handed my 160GB iPod to my husband to put his fav Stones & Beatles songs on and I went back to my 80GB Microsoft Zune which has never disappointed me.
After spending so much time trying to figure this out I did finally take it back to Apple Store who performed a diagnostic and found there was a problem with the device. They replaced it with a refurbished one which has similar issues. All I wanted to do was listen to my music. Was that too much to ask? So I am happy to be free of this problematic device. No more Apple for me!!

Plugged the charger in the wall, it gives me a black screen then the white screen with the apple logo, then repeat.... i tried the dfu thing and now the phone is saying connect to itunes, when i plug the phone outta the wall, the phone goes dead..... pl

i bought a locked at&t phone....
i sent it to be unlocked... got back a dead iphone 5s...
plugged the charger in the wall, it gives me a black screen then the white screen with the apple logo, then repeat....
i tried the dfu thing and now the phone is saying connect to itunes, when i plug the phone outta the wall, the phone goes dead.....
plugging the phone into the laptop NOTHING!!!!!!!!!!!!!!!!!!!!!
the laptop doe read my phone.....
no ding.....
the phone wont turn on....
NOTHING
can someone plz tell me what the **** is going on

mariidb wrote:
i bought a locked at&t phone....
i sent it to be unlocked... got back a dead iphone 5s... {snip}
the phone wont turn on....
NOTHING
can someone plz tell me what the **** is going on
That's the problem. That's what the **** is going on.

TS1367 My MacBook turned on but is stuck on the white screen with the apple and the loading circle.

My MacBook turned on but is stuck on the white screen with the apple and the loading circle.

Hi there Mpontari,
I would recommend taking a look at the troubleshooting steps found in the article below.
Mac OS X: Gray screen appears during startup
http://support.apple.com/kb/ts2570
-Griff W.

HT3964 I am not able to reboot my Mac desktop. When I switch on the Mac, I get a white screen with the Apple logo and the little wheel below that goes round and round but the computer refuses to boot.

Hi, I am not able to reboot my Mac desktop.
When I switch on the Mac, I get a white screen with the Apple logo and the little rotating circle.
The system refuses to boot.
What can I do?
Marcus

We need to get you moved. This forum is for mini-tower Macs built between 1998 and 2005 and doesn;t get as much traffic ("eyeballs on the problem") as the forums for newer Macs.
Please do "About this Mac" from you Apple menu and tell us what that says for "processor" and Mac OS version. Looks like this:
or this for later Mac OS versions:
With that we can figure out which of the two iMac forums you need and get the Hosts to move your post.

Help! I'm stuck on the white screen with the gray apple!

I just got an iMac g3/500 indigo, I think it has OS 10.0.4 installed. When I first turned it on it started fine and went to the password page. I did not have the password so I turned it off called the person I got it from, got the password. When I turned the G3 back on all I now get is the white screen with the gray apple. I tried to start in safe mode, it starts to load but then tells me I need to restart. I do not have the original disks, I do OS 10.3.2 disks but they are the DVD version and do not seem to work on this G3. What can I do? I am stuck, can someone please help? Thanks

Hi Frey
If your indigo has firewire (which I think it will have) see if you can borrow an external firewire DVD-drive. You can boot the iMac from that.
There may be one slight problem though with firmware (not firewire). I forget at the moment which version it is but installing 10.3 (I think) without updating the firmware first gives you blank screen and renders the mac unusable until you can get it fixed.
The problem is that firmware can only be updated while running OS9 "from the internal HD".
You end up with a catch 22 situation where you need OS9 CDs in order to install OS10.
The likely-hood of the iMac NOT having OS9 on it already is slim - no-one in their right mind would run an imac solely in 10.0. So you have to work out a way of getting started in 9.
See if you can locate an OS9 start-up CD - doesn't have to be an Apple one- Norton Utilities or TechTool Pro will do. Just get the mac started and then go to the control panels (under the Apple menu) and select start-up disk. It should (after a pause or two) show you all the viable startup systems on the mac. If you still can't get going you may have to rebuild the HD using one of the aforementioned utilities disks - though I would use DiskWarrior for that in preference to both of the others.
Let us know how you get on.

My MacBook Air will not turn on. I get a white screen with the apple logo and a spinning star that just does that for hours

My MacBook Air will not turn on. I get a white screen with the apple logo and a spinning star (search icon). It will spin for hours and never go away unless I power off.

Take each of these steps that you haven't already tried. Stop when the problem is resolved.
To restart an unresponsive computer, press and hold the power button for a few seconds until the power shuts off, then release, wait a few more seconds, and press it again briefly.
Step 1
The first step in dealing with a startup failure is to secure the data. If you want to preserve the contents of the startup drive, and you don't already have at least one current backup, you must try to back up now, before you do anything else. It may or may not be possible. If you don't care about the data that has changed since the last backup, you can skip this step.
There are several ways to back up a Mac that is unable to start. You need an external hard drive to hold the backup data.
a. Start up from the Recovery partition, or from a local Time Machine backup volume (option key at startup.) When the OS X Utilities screen appears, launch Disk Utility and follow the instructions in this support article, under “Instructions for backing up to an external hard disk via Disk Utility.” The article refers to starting up from a DVD, but the procedure in Recovery mode is the same. You don't need a DVD if you're running OS X 10.7 or later.
b. If Step 1a fails because of disk errors, and no other Mac is available, then you may be able to salvage some of your files by copying them in the Finder. If you already have an external drive with OS X installed, start up from it. Otherwise, if you have Internet access, follow the instructions on this page to prepare the external drive and install OS X on it. You'll use the Recovery installer, rather than downloading it from the App Store.
c. If you have access to a working Mac, and both it and the non-working Mac have FireWire or Thunderbolt ports, start the non-working Mac in target disk mode. Use the working Mac to copy the data to another drive. This technique won't work with USB, Ethernet, Wi-Fi, or Bluetooth.
d. If the internal drive of the non-working Mac is user-replaceable, remove it and mount it in an external enclosure or drive dock. Use another Mac to copy the data.
Step 2
If the startup process stops at a blank gray screen with no Apple logo or spinning "daisy wheel," then the startup volume may be full. If you had previously seen warnings of low disk space, this is almost certainly the case. You might be able to start up in safe mode even though you can't start up normally. Otherwise, start up from an external drive, or else use the technique in Step 1b, 1c, or 1d to mount the internal drive and delete some files. According to Apple documentation, you need at least 9 GB of available space on the startup volume (as shown in the Finder Info window) for normal operation.
Step 3
Sometimes a startup failure can be resolved by resetting the NVRAM.
Step 4
If a desktop Mac hangs at a plain gray screen with a movable cursor, the keyboard may not be recognized. Press and hold the button on the side of an Apple wireless keyboard to make it discoverable. If need be, replace or recharge the batteries. If you're using a USB keyboard connected to a hub, connect it to a built-in port.
Step 5
If there's a built-in optical drive, a disc may be stuck in it. Follow these instructions to eject it.
Step 6
Press and hold the power button until the power shuts off. Disconnect all wired peripherals except those needed to start up, and remove all aftermarket expansion cards. Use a different keyboard and/or mouse, if those devices are wired. If you can start up now, one of the devices you disconnected, or a combination of them, is causing the problem. Finding out which one is a process of elimination.
Step 7
If you've started from an external storage device, make sure that the internal startup volume is selected in the Startup Disk pane of System Preferences.
Start up in safe mode. Note: If FileVault is enabled in OS X 10.9 or earlier, or if a firmware password is set, or if the startup volume is a software RAID, you can’t do this. Post for further instructions.
Safe mode is much slower to start and run than normal, and some things won’t work at all, including wireless networking on certain Macs.
The login screen appears even if you usually log in automatically. You must know the login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
When you start up in safe mode, it's normal to see a dark gray progress bar on a light gray background. If the progress bar gets stuck for more than a few minutes, or if the system shuts down automatically while the progress bar is displayed, the startup volume is corrupt and the drive is probably malfunctioning. In that case, go to Step 11. If you ever have another problem with the drive, replace it immediately.
If you can start and log in in safe mode, empty the Trash, and then open the Finder Info window on the startup volume ("Macintosh HD," unless you gave it a different name.) Check that you have at least 9 GB of available space, as shown in the window. If you don't, copy as many files as necessary to another volume (not another folder on the same volume) and delete the originals. Deletion isn't complete until you empty the Trash again. Do this until the available space is more than 9 GB. Then restart as usual (i.e., not in safe mode.)
If the startup process hangs again, the problem is likely caused by a third-party system modification that you installed. Post for further instructions.
Step 8
Launch Disk Utility in Recovery mode (see Step 1.) Select the startup volume, then run Repair Disk. If any problems are found, repeat until clear. If Disk Utility reports that the volume can't be repaired, the drive has malfunctioned and should be replaced. You might choose to tolerate one such malfunction in the life of the drive. In that case, erase the volume and restore from a backup. If the same thing ever happens again, replace the drive immediately.
This is one of the rare situations in which you should also run Repair Permissions, ignoring the false warnings it may produce. Look for the line "Permissions repair complete" at the end of the output. Then restart as usual.
Step 9
If the startup device is an aftermarket SSD, it may need a firmware update and/or a forced "garbage collection." Instructions for doing this with a Crucial-branded SSD were posted here. Some of those instructions may apply to other brands of SSD, but you should check with the vendor's tech support.
Step 10
Reinstall the OS. If the Mac was upgraded from an older version of OS X, you’ll need the Apple ID and password you used to upgrade.
Step 11
Do as in Step 9, but this time erase the startup volume in Disk Utility before installing. The system should automatically restart into the Setup Assistant. Follow the prompts to transfer the data from a Time Machine or other backup.
Step 12
This step applies only to models that have a logic-board ("PRAM") battery: all Mac Pro's and some others (not current models.) Both desktop and portable Macs used to have such a battery. The logic-board battery, if there is one, is separate from the main battery of a portable. A dead logic-board battery can cause a startup failure. Typically the failure will be preceded by loss of the settings for the startup disk and system clock. See the user manual for replacement instructions. You may have to take the machine to a service provider to have the battery replaced.
Step 13
If you get this far, you're probably dealing with a hardware fault. Make a "Genius" appointment at an Apple Store, or go to another authorized service provider.

Last night I did an update and now when I turn on my macbook it just goes to the white screen with the apple and stays like that.

Last night I did an update and now when I turn on my macbook it just goes to the white screen with the apple and stays like that. How do I fix this issue?

Take each of these steps that you haven't already tried. Stop when the problem is resolved.
To restart an unresponsive computer, press and hold the power button for a few seconds until the power shuts off, then release, wait a few more seconds, and press it again briefly.
Step 1
The first step in dealing with a startup failure is to secure the data. If you want to preserve the contents of the startup drive, and you don't already have at least one current backup, you must try to back up now, before you do anything else. It may or may not be possible. If you don't care about the data that has changed since the last backup, you can skip this step.
There are several ways to back up a Mac that is unable to start. You need an external hard drive to hold the backup data.
a. Start up from the Recovery partition, or from a local Time Machine backup volume (option key at startup.) When the OS X Utilities screen appears, launch Disk Utility and follow the instructions in this support article, under “Instructions for backing up to an external hard disk via Disk Utility.” The article refers to starting up from a DVD, but the procedure in Recovery mode is the same. You don't need a DVD if you're running OS X 10.7 or later.
b. If Step 1a fails because of disk errors, and no other Mac is available, then you may be able to salvage some of your files by copying them in the Finder. If you already have an external drive with OS X installed, start up from it. Otherwise, if you have Internet access, follow the instructions on this page to prepare the external drive and install OS X on it. You'll use the Recovery installer, rather than downloading it from the App Store.
c. If you have access to a working Mac, and both it and the non-working Mac have FireWire or Thunderbolt ports, start the non-working Mac in target disk mode. Use the working Mac to copy the data to another drive. This technique won't work with USB, Ethernet, Wi-Fi, or Bluetooth.
d. If the internal drive of the non-working Mac is user-replaceable, remove it and mount it in an external enclosure or drive dock. Use another Mac to copy the data.
Step 2
If the startup process stops at a blank gray screen with no Apple logo or spinning "daisy wheel," then the startup volume may be full. If you had previously seen warnings of low disk space, this is almost certainly the case. You might be able to start up in safe mode even though you can't start up normally. Otherwise, start up from an external drive, or else use the technique in Step 1b, 1c, or 1d to mount the internal drive and delete some files. According to Apple documentation, you need at least 9 GB of available space on the startup volume (as shown in the Finder Info window) for normal operation.
Step 3
Sometimes a startup failure can be resolved by resetting the NVRAM.
Step 4
If a desktop Mac hangs at a plain gray screen with a movable cursor, the keyboard may not be recognized. Press and hold the button on the side of an Apple wireless keyboard to make it discoverable. If need be, replace or recharge the batteries. If you're using a USB keyboard connected to a hub, connect it to a built-in port.
Step 5
If there's a built-in optical drive, a disc may be stuck in it. Follow these instructions to eject it.
Step 6
Press and hold the power button until the power shuts off. Disconnect all wired peripherals except those needed to start up, and remove all aftermarket expansion cards. Use a different keyboard and/or mouse, if those devices are wired. If you can start up now, one of the devices you disconnected, or a combination of them, is causing the problem. Finding out which one is a process of elimination.
Step 7
If you've started from an external storage device, make sure that the internal startup volume is selected in the Startup Disk pane of System Preferences.
Start up in safe mode. Note: If FileVault is enabled in OS X 10.9 or earlier, or if a firmware password is set, or if the startup volume is a software RAID, you can’t do this. Post for further instructions.
Safe mode is much slower to start and run than normal, and some things won’t work at all, including wireless networking on certain Macs.
The login screen appears even if you usually log in automatically. You must know the login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
When you start up in safe mode, it's normal to see a dark gray progress bar on a light gray background. If the progress bar gets stuck for more than a few minutes, or if the system shuts down automatically while the progress bar is displayed, the startup volume is corrupt and the drive is probably malfunctioning. In that case, go to Step 11. If you ever have another problem with the drive, replace it immediately.
If you can start and log in in safe mode, empty the Trash, and then open the Finder Info window on the startup volume ("Macintosh HD," unless you gave it a different name.) Check that you have at least 9 GB of available space, as shown in the window. If you don't, copy as many files as necessary to another volume (not another folder on the same volume) and delete the originals. Deletion isn't complete until you empty the Trash again. Do this until the available space is more than 9 GB. Then restart as usual (i.e., not in safe mode.)
If the startup process hangs again, the problem is likely caused by a third-party system modification that you installed. Post for further instructions.
Step 8
Launch Disk Utility in Recovery mode (see Step 1.) Select the startup volume, then run Repair Disk. If any problems are found, repeat until clear. If Disk Utility reports that the volume can't be repaired, the drive has malfunctioned and should be replaced. You might choose to tolerate one such malfunction in the life of the drive. In that case, erase the volume and restore from a backup. If the same thing ever happens again, replace the drive immediately.
This is one of the rare situations in which you should also run Repair Permissions, ignoring the false warnings it may produce. Look for the line "Permissions repair complete" at the end of the output. Then restart as usual.
Step 9
If the startup device is an aftermarket SSD, it may need a firmware update and/or a forced "garbage collection." Instructions for doing this with a Crucial-branded SSD were posted here. Some of those instructions may apply to other brands of SSD, but you should check with the vendor's tech support.
Step 10
Reinstall the OS. If the Mac was upgraded from an older version of OS X, you’ll need the Apple ID and password you used to upgrade.
Step 11
Do as in Step 9, but this time erase the startup volume in Disk Utility before installing. The system should automatically restart into the Setup Assistant. Follow the prompts to transfer the data from a Time Machine or other backup.
Step 12
This step applies only to models that have a logic-board ("PRAM") battery: all Mac Pro's and some others (not current models.) Both desktop and portable Macs used to have such a battery. The logic-board battery, if there is one, is separate from the main battery of a portable. A dead logic-board battery can cause a startup failure. Typically the failure will be preceded by loss of the settings for the startup disk and system clock. See the user manual for replacement instructions. You may have to take the machine to a service provider to have the battery replaced.
Step 13
If you get this far, you're probably dealing with a hardware fault. Make a "Genius" appointment at an Apple Store, or go to another authorized service provider.

Installed itunes 10.7 today but the restart is frozen at the white screen with the rotating wheel. Any help is appreciated.

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