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Cannot restart my Mac... White screen...apple logo...."Circle

Cannot restart my Mac... White screen...apple...
Cannot restart my Mac...
White screen...apple logo...."Circle of doom" constantly revolving.
Can you help?
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Answered in 2 minutes by:
8/2/2012
Mike
Mike, Mac Medic
Category: Mac
Satisfied Customers: 9,000
Experience: Over 20 years IT experience with Apple computers in publishing, marketing and design.
Verified
Put the Snow Leopard disk in and then hold the power button for about 10 seconds to shut off, and then start up holding down the letter C key until you see the Apple logo. Choose your language then you get to the install screen DO NOT INSTALL, you will see at the top of the screen a Utilities menu drop down. Go the Disk Utility, Highlight your hard drive (usually Macintosh HD) and click on Verify Disk on the right. If that is OK and only if that is OK click on Repair Permissions. If Verify Disk is not OK try to Repair. If Repair is successful then Repair Permissions if it is not successful let me know.
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Customer reply replied 5 years ago
Put in Snow Leopard disc. Held the power button for 10 seconds. Held down the letter "C".....Nothing happened?
Pressed the power button....Same screen as i have described...No change?
Hold the power button for 15 seconds then start it but you have to keep holding the C key until you see the Apple logo
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Customer reply replied 5 years ago
Did as you recommended....I heard the disc try and do something, but alas, no joy...Back to Screen with logo, "Circle of doom"!!!
It may take longer to boot from the system DVD do you hear it working?
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Customer reply replied 5 years ago
No!!!
Disc only made a noise for a few seconds, then nothing.
Not good there may be a hardware failure. Ok try again but this time just hold the Shift key until you see the Apple logo
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Customer reply replied 5 years ago
Something is happening!!!
Apple logo...'Circle of doom"...Underneath a bar, slowly filling up!!!

Bar filled up...Then disappeared...Now what?
OK it is in Safe Mode let it go it is checking the disk and trying to repair.
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Customer reply replied 5 years ago
Okay!!!
But still the Apple logo. "Revolving circle of doom", and "NO" noise from the disc!!!

Is it still repairing itself...Given that the screen is still the same?
It could be yes it is not using the system disk, give it 15 minutes
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Customer reply replied 5 years ago
We're knocking on 25 minutes....Still nothing new...Same old screen...Any suggestions?
We would need to start up from the system disk to see what is going on but I would guess the hard drive is too corrupt to fix that way or the power outage caused some other kind of hardware failure. Do you have an aircan to try to blow out any dust that might be in the drive?
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Customer reply replied 5 years ago
Tried that!
Still the same...I don't understand how one minute my computer is fine, and the next, total system breakdown...Let alone all the valuable data i have stored on there!!!

What next?
When the electricity goes off abruptly as the computer is writing to disk or erasing, etc.. it can be disastrous as it makes the disk's directory corrupt. Try this so we can at least see what is happening.

Start up your computer in single-user mode to reach the command line.
1. Shut down your Mac if it is on.
2. Press the power button to start the computer.
3. Immediately press and hold the Command (Apple) key and the "s" key for single-user mode. (Command-S)
You have successfully entered single-user mode when you see white text appear on the screen.

At the command-line prompt type: 

/sbin/fsck -fy

Press Return. fsck will go through five "phases" and then return information about your disk's use and fragmentation. Once it finishes, it'll display this message if no issue is found:
** The volume (name_of_volume) appears to be OK 
If fsck found issues and has altered, repaired, or fixed anything, it will display this message:
***** FILE SYSTEM WAS MODIFIED ***** 
Important: If this message appears, repeat the fsck command you typed in step 2 until fsck tells you that your volume appears to be OK (first-pass repairs may uncover additional issues, so this is a normal thing to do).

When fsck reports that your volume is OK, type reboot at the prompt and then press Return.
Your computer should start up normally and allow you to log in.
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Customer reply replied 5 years ago
Okay!!!
Did as instructed...

Got the HD is okay, Volume is ok. Typed "Reboot"....Just waiting now....

Back to same screen!!!

Apple logo, and "Revolving circle of doom"....How long should this take?
Ok there is something else wrong then you will need to boot from that disk and try a reinstall. If you can't with the internal drive you will need to try an external DVD drive or take it in to Apple. Sorry wish I had better news.

Put the Snow Leopard disk in and restart holding down the letter C key until you see the Apple logo. When you get to the install screen DO NOT INSTALL, you will see at the top of the screen a Utilities menu drop down. Go the Disk Utility, when it opens select your drive on the left and select Verify Disk if OK also repair Permissions. If not OK try to Repair if Repair completes then Repair Permissions. Then quit Disk Utility and then you will see the install screen . Install choosing the option to Archive and Install if you don't have that option just install. Restart and run Software Update until no more updates are available. Let me know.

NO Answer is final, PLEASE DO NOT Rate to Finish unless this Answer is correct and you are satisfied. If so then you can Accept and Rate my Service. If it does not solve your problem, please Reply to Expert and let me know, I am here until we can fix the problem.


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Customer reply replied 5 years ago
The Snow Leopard disc is still in the drive, and i obviously cannot strike a key function to retrieve it!
What next?
Not sure what you mean. Restart and hold the mouse button to eject the disk.
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Customer reply replied 5 years ago
Okay...Here is where we stand...
Back to square one!!!

Still same screen as when first started...

Everything we have tried has not worked...

I am a school teacher, and my whole years worth of lesson plans are some where on that computer....What if anything can we do next???
You need to give me more information please. Did the disk eject?
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Customer reply replied 5 years ago
Yes, the disc did eject...Back to the same ole screen!!!
Sorry i did not pass on that info...Just a little frustrated...Not at you, but the computer!!!
I understand your frustration but I already told you what you have to do. You HAVE to get it to boot from the Snow Leopard disk or take it in to Apple, even if I was standing next to you that is what I would suggest:

If you can't with the internal drive you will need to try an external DVD drive or take it in to Apple. Sorry wish I had better news.

Put the Snow Leopard disk in and restart holding down the letter C key until you see the Apple logo. When you get to the install screen DO NOT INSTALL, you will see at the top of the screen a Utilities menu drop down. Go the Disk Utility, when it opens select your drive on the left and select Verify Disk if OK also repair Permissions. If not OK try to Repair if Repair completes then Repair Permissions. Then quit Disk Utility and then you will see the install screen . Install choosing the option to Archive and Install if you don't have that option just install. Restart and run Software Update until no more updates are available. Let me know.

Mike
Mike, Mac Medic
Category: Mac
Satisfied Customers: 9,000
Experience: Over 20 years IT experience with Apple computers in publishing, marketing and design.
Verified
Mike and 87 other Mac Specialists are ready to help you
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Sorry I forgot one thing, thank you, try this:

Resetting the SMC & PRAM for Mac Pro, Intel-based iMac, Intel-based Mac mini, or Intel-based Xserve

1. Shut down the computer.
2. Unplug the computer's power cord.
3. Wait fifteen seconds.
4. Attach the computer's power cord.
5. Wait five seconds, then press the power button to turn on the computer.
6. Press and hold the Command-Option-P-R keys before the gray screen appears.
7. Hold the keys down until the computer restarts.
8. Release the keys. 

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Customer reply replied 5 years ago
Managed to load the Snow Leopard disc...
Got to the point where "Repair permissions"...

It said...'1 Hour 11 minutes....

Then it froze again!!!!!!!
If Verify Disk was ok just let it go. Without a backup I am a little reluctant to say go ahead with reinstall unless that finishes. The time is usually way off.
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Customer reply replied 5 years ago
I give in!!!
Tried everything.

Back to the same ole' screen!!!

Don't know what else to do?
Did you reinstall?
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Customer reply replied 5 years ago
Tried to reinstall...Nothing happening.
It was going great until I clicked onto 'Repair Permissions". It then said 1 hour 11 minutes to finish....And then it just froze.
Ok try again but this time if Verify Disk is Ok skip Repair Permissions and just quit Disk Utility and reinstall 10.6 restart and run Software Update.
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Customer reply replied 5 years ago
Will do...If it will let me reload the disc???
Must have tried 20 times...Only once has it come to fruition.

Will keep trying, until i decide to throw the computer!!!;)
Don't do that, please. LOL
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Customer reply replied 5 years ago
Okay....
Mac installer screen came up ....What next?

Just install, then run Software update after restart
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Customer reply replied 5 years ago
Installing....Will keep you posted!!!
44 minutes and counting down.
OK my fingers are crossed but I wish you had a backup please get one in future. Let me know
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Customer reply replied 5 years ago
When you mean "Backup", what do you specifically mean?
I mean you need a backup of your computer to be safe you know about backup correct?
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You should get a Mac formatted external drive at least twice as large as your internal drive and use Time Machine as a backup system. Let me know if you need help with that.
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Customer reply replied 5 years ago
I'm Using my main computer to ask you these questions, but my work computer..(With ALL my lesson plans for teaching) is the one that's giving me grief. Both are i-Mac's!!!
Let's try and fix the one computer right now!!!

Okay...Disc reloaded...At Language question...Now next step?
Sorry had to take the dog out. I thought you already reinstalled? Where are you at?
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Customer reply replied 5 years ago
Language question?
Want this time to count!!!
I don't know what you mean. Can you clarify?
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Customer reply replied 5 years ago
Disc has loaded..."Install Mac OSX" has appeared...Now what?
Just choose your language and install, run software update after.
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Customer reply replied 5 years ago
Did that a while ago...During installation...it stopped saying it could not install?
That helps, thanks. That was the exact message?
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Customer reply replied 5 years ago
Don't understand?
Have tried to load Snow leopard....Did not install...

Tried Disc utility..repair permissions...Froze...

Next try?
Sorry then you have a hardware problem you need to take it in for repair. Nothing more you can do on your own.
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Customer reply replied 5 years ago
Thank you for your help.
Ok good luck sorry I wish I could help you more at this point.
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Mike
Mike
Mike, Mac Medic
Category: Mac
Satisfied Customers: 9,000
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Experience: Over 20 years IT experience with Apple computers in publishing, marketing and design.

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