OS X :: Mac Keeps Restarting And Won't Startup

Feb 6, 2010

My macbook keeps restarting after the chimes. I forgot my password so I tried to "hack" a new admin account by putting it in single user mode and then entering the command : /sbin/mount -uw / and when I entered the 2nd command : rm /var/db/.applesetupdone it didn't work. When I tried to restart my MAC it kept going to the start up screen and just keeps on restarting over and over again.

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OS X :: Mac Keeps Restarting At Boot?

Jul 21, 2009

Today my Mac was running fine and I rebooted. When it came to the bootup (gray screen) screen, it was there for about 1 minute and it keeps restarting.

I popped the Mac OS X DVD in and am repairing permissions as I type this. It says 44 minutes remaining. There is a long list of permission issues. Could this fix the problem?
I also tried a Disk Repair, but it said that Macintosh HD is OK.

I really don't want to do an Archive and Install (hopefully the permissions repair will work). But if I do, will this fix it? Will it keep all my files? Settings?

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OS X :: Mac Keeps On Randomly Restarting?

Jun 15, 2010

The restart always occurs when I am browsing and interacting with ebay on any browser (tested on FireFox, Safari, and Chrome with a restart occurring in all 3) The screen slowly gets covered by a light grey over layer and displays a message telling me that there has been a problem and that I need to hold down the power button to restart my macbook. this has been happening to me for the past 3 weeks and I can't stand it anymore.

Any suggestion on how I might be able to find a solution to the issue? Also, has this happened to anyone else out there? I am running Snow Leopard 10.6 on a 2009 macbook.

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MacBook :: The Computer Just Keeps Restarting?

May 20, 2009

When I put in the original OEM leopard discs that came with my new macbook, the computer just keeps restarting. Any ideas? I thought these were recovery discs?

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OS X :: Software Updates Without Restarting?

Mar 13, 2010

Before Snow Leopard, I could just force quit a Software Update after it was done to avoid restarting. Now Apple makes it so I can't even use my computer while it is being updated. How does one keep Software Update in check?

Treating me like a dumb computer user makes me seriously consider switching to Linux. I want my freedom back!

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MacBook Pro :: Freezing - Now Restarting?

Jun 21, 2010

My MBP has been freezing over the past few weeks. When the computer freezes, the mouse gets hypersensitive, then it will be unresponsive to everything. The screen then goes black. One of three things then happen. One, I manually shut the computer down by holding the power button. Two, same as one except I get a Kernel Panic text file on my desktop when it loads back up (this only has happened once), or three, the computer restarts itself. It once from while I was playing Call of Duty 4, and once right after I had quit it. However, I had SMC fan set high whenever I play it, my computer is on a cooling stand and there's an desktop fan right next to it blowing over and under it. Could overheating still be a problem?

My MBP is late 2008 refurb, 2.53ghz, 9600 w/ 512 vram, 5400 rmp hard drive, 4gb Apple ram. Freezing has happened under both 9600 and 9400 cards.

The 9600 and hard drive have both been replaced by Apple in the past few months due to other freezing issues (the 9600 was defective, but when it froze I would get screen artifacts and the mouse would still move neither of those things happen now).

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OS X :: System Always Needs Restarting Just To Get To Desktop?

Jul 18, 2010

i turn on my iMac it either freezes and the screen is all white or all blue. I have to try doing safe boot everytime i want to use it. While doing safe boot its not always sucessful, would have to do it 3 to 5 times until i get to the actual desktop.

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Software :: Mac G5 2.5 Dual Not Restarting?

Aug 13, 2009

Mac G5 2.5 Dual Not Restarting

My G5 2.5 dual, runs all day with no problems, if I shut it down for any reason, I have to wait 15-20 mins before I can restart it. If I start before this period then the machine chime but then hangs and does nothing else, nothing is displayed on the screen. If I wait the 15-20 mins the machine continues to work all with no problems.

The machine is clean inside and the fans run as normal.

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Intel Mac :: Keeps Turning Off And Restarting By Itself?

Apr 9, 2012

My iMac keeps turning off and restarting by itself. 

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Mac Pro :: Restarting On It's Own On Initial Start Ups?

Apr 26, 2012

I don't keep my computer on 24/7. Lately, when I start it up, it restarts on it's own. Sometimes, it seems to get through with the initial start up but shuts down & restarts after about a minute. Sometimes, however, it doesn't even finish the boot up process when this happens. This usually will happen over & over again a many times. The only short term solution I've found, is to unplug my computer, then restart it after a minute or so. This has not permanently fixed this problem however, because the next time I shut off, it happens again.

Info:
mac pro, Mac OS X (10.5.8)

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Mac Pro :: 10.6.8 Random Restarting - How To Stop It

Jun 4, 2012

I own a MacPro, running OS X 10.6.8. Several weeks ago it began to restart on its own, right after I turned it on. I ignored the issue and continued to work with it for several weeks.  Suddenly yesterday it began to behave funky again, to the point where I cannot work with it at all. I turned on the computer, and few minutes later, it restarted on its own for several times. The point where it restarts is random, sometime in the sing in section (when you place the password) or while I work on some program. I was trying to run DiskWarrior, and the machine restarted on its own again! 

I am also using part of this Mac as a PC, so I tried restarting on PC to see if its only on the MAC side, but it didn't make it through, it restart again before the windows icon appeared. Then after several restarts on the Mac side, an error message appeared, on the grey screen before the apple icon appears. It is all writen in code and it says something like: panic (cpu 0 caller 8x2aaf41): Machine check at .... (the picture is in my iPod but I don't know how to bring it into my computer). By searching this forum, I read I could try by reseting the PRAM and NVRAM, but I wonder what the consequences are when doing this. And if I try reinstalling the software, would I still be able to keep the PC side intact? Cause I still need to access the PC side as it is? I was able to run a backup for the Mac yesterday, but I couldn't for the PC.  

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MacBook :: My Pro 15" Keeps Restarting

Jun 27, 2012

Ive just bought the new Mac book Pro 15" that was released a couple of weeks ago and it suddenly freezes and the restarts, it's done this four times, ive only had it for a week.

Info:MacBook Pro (15-inch, Mid 2012)

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MacBook Pro :: Restarting Instead Of Shutting Down

Jun 22, 2014

Why would my MBP restart when I try to shut down?

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Windows On Mac :: XP Side Of BootCamp Keeps Restarting

Oct 23, 2008

My computer was running extremely slow and seemed to be freezing, so I restarted and now it is restarting and coming to the screen that says Windows didn't shut don properly and asks if I want to run in safe mode, normal, at last known good configuration. I have tried every option, but it looks like it is restarting properly, then it powers off and back on to the same screen over and over again. It briefly shows the blue screen of death, but not long enough to even read it; it just flashes, then goes on to restarting. The Mac side seems to be working fine, but I have a lot of Windows programs I need to use, so I need my Windows side to work as well.

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Windows On Mac :: Loading XP And Froze When Restarting

Jan 27, 2009

I was loading windows xp home addition on my macbook pro and it froze when restarting. Now when I start the computer it just pulls up a black screen that says press any button to restart, but pressing the buttons does nothing.

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OS X :: Bluetooth Mouse Not Found On Restarting Mac Pro

Jul 20, 2009

For some time now I have been using a logitech V270 bluetooth mouse with my Mac Pro which has a bluetooth 2.0 card installed. All works fine except that when I restart my Mac Pro the mouse is generally not automatically detected and I get the 'bluetooth mouse setup' screen with the message 'there isn't a mouse connected'. I then need to press the reset button on the mouse and go through the usual connection procedure. I wonder How I can get this set up so that the Mac Pro automatically connects.

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MacBook Pro :: New 17'' MBP Makes Odd Sounds When Restarting

Sep 13, 2009

I bought a new 17 inch MBP tonight. When it started up, it made a very odd sound that was similar to a CD/DVD being processed or ejected.I thought maybe it was a one time thing, but since restarting it a few times, it's made the same sound each time.Is this normal? I've never heard it before. It's like there's a CD or DVD in there, but of course there isn't.

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OS X :: Mac Pro Keeps Restarting - Swapped It For NVIDIA GeForce GT 120

Oct 22, 2009

I am fairly new to macs and I am having a problem, my Mac Pro keeps restarting. I had a quadro FX 4800 video card on it, but it apperently was useless for gaming ( had problems with all the games i tried), so i swapped it for a NVIDIA GeForce GT 120. I was instructed that once the card was put in i would just have to start up the Mac and download the drivers. But every time i try to start up it just keeps teling me over and over the mac has to restart. Is there some way to fix this? Would having the Mac dual booted with Windows vista ultimate be a contributing fact to this problem, as that starts up but the display is weird and the graphics card doesnt seem to be registered on the system.

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OS X :: Trying To Reinstall Leopard On MacBook - Keeps Restarting

Jun 16, 2010

I misplaced my recovery disk so im using my leopard cd when I put in osx it prompts to restart the computer. Once I do that it keeps rebooting over and over it has a grey screen but here the mac reboot sound. Once I take out the leopard cd then it reboots up normally.

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OS X :: Imac Keeps Restarting On Its Own - Damage Files

Jul 12, 2010

after having my imac for almost 3 yrs im having problems just after being online for 5 to 10 minutes it RESTARTS on its own and it keeps doing it unless i shut it down some days it work fine and some it don't or it will work half way through the day. went to the disk utility and did everything and it didn't find a problem so what can it be. someone mention something to be bout the POWER SUPPLY, AND ANOTHER SAY ITS PROBABLY OVER HEATING. when i put the disk in it at start up and press *D* to run that test it NEVER FINISH it restarts. also found damage files what are they?

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Windows On Mac :: Bootcamp Restarting Automatically?

Jul 25, 2010

(15" 2010) running OSX and Windows XP via Boot Camp.1. When I'm in XP, and I want to reboot the computer in OSX, and I right-click on the little grey diamond in the system tray and select 'Restart in Mac OS X', the computer stops responding. I can move the mouse around, but everything else is completely stuck (can't click on icons, buttons, etc) and the computer doesn't restart. If I go to the Control Panel, select the OSX disk, and then restart the computer using the Start menu, it works just fine.

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Hardware :: Red Light Appears Next To The RAM After Restarting?

Dec 13, 2007

I thought I had RAM problems as I couldn't upgrade properly so I bought some new RAM (2x1GB) and replaced the old ones. However upon restarting a red light appears next to the RAM top slot and the machine still does not start. I also notice that the LED next to the power button flashes twice which according to some other info suggests that it can't see the RAM. I've taken it out and put it back carefully but to no avail - the same result !!!

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Software :: Finder Not Responding - Keeps Restarting

Apr 1, 2006

i have recently been doing some things to my system as in this faq i found at http://www.index-site.com/Macosxspeed.html to "speed up OS X". and then not long after, i tried to move something out of my trash, and the finder locked up, my icons dissapeared, and it kept restarting! I rebooted my machine and the problem persists. it tries to run, freezes, not responds, then restarts. meanwhile, i can only get into programs that are on my dock.

i restarted, typed cmd-s, then fsck -f, and there were no problems there.

I put my osx panther install disc in, to try to do an archive & install(to reset prefrences) however i do not know how to get it to run, because i can't use my finder.

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Software :: Reinstalling Mac OS X - Process Keeps Restarting

Jul 8, 2008

I am trying to reinstall Mac OS X with the CDs supplied with my Mac Book, but when I put in cd #2, the installation process restarts when it gets to iWeb. It just keeps restarting. I followed all the directions with the software.

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Software :: G4 Not Restarting As Disc Image

Feb 14, 2009

I just bought a brand new 2.4ghz imac. I went to transfer data. Hooked it up with the firewire. When I tried to restart while pressing "t" the g4 made the happiness sound and ran for a bit then clicked off. Kept trying, got "there are no discs with osx on your computer" and some other error messages. The g4 starts up fine and runs otherwise. When I tried to do it with the migration assistant it told me that I have to be running the latest os on the g4. Well, according to mac, I can't f'ing run the latest os on the g4 because the machine only runs at 800 mhz.

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MacBook Pro :: It Has Been Running Slow And Not Restarting

Feb 16, 2012

A few days ago I had to shut down my macbook because it froze. When I tried to restart it, it would sit on the grey apple screen and then after a few minutes it would restart again, and again, never getting past that screen. I called apple support and they tried to help me do a few things, non of which would work. Then they said I needed to reinstall OS Leopard but I did not have the discs, so I am waiting on them to be shipped. However, the next day I turned my mac on, and it worked. Since then I have turned it off and it has not worked again, but after doing a pram reset it works. However, it is very slow, only the safari browser will work, I cannot empty the trash (among other things) and just now when I tried to download an article off the internet, it said my disc was full and I had to delete things in order to clear space. if just reinstalling OS Leopard or upgrading to Lion will help?

Info:
MacBook Pro, Mac OS X (10.5.8)

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MacBook :: My Computer Has Been Spontaneously Restarting Itself

Mar 17, 2012

My computer has been spontaneously restarting itself. This last time I wasn't even at the keyboard, I was across the room.  I don't know what to make of it, completely baffled.

Info:MacBook, Mac OS X (10.5.8)

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MacBook Pro :: It Won't Turn On And Disk Keeps Restarting

Mar 27, 2012

My MacBook Pro 15" (2010 i think) ran out of battery, switched off really abruptly. Now when I go to charge it, the light at the front flashes on but then turns straight off before repeating. It tries to boot, I can hear the disk begin to whirr but then it turns off abruptly and it keeps trying. I don't understand why it won't boot and why it cuts out during the boot-up! It literally stops booting after 1 second. I think it might be my harddisk being full? It only has 900mb free?

Info:
MacBook
Pro, Mac OS X (10.6.8)

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MacBook Air :: Can't Login To Computer After Restarting

Apr 17, 2012

I can't login to my computer after restarting as i dont know what im typing

Info:
MacBook Air, Mac OS X (10.7)

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MacBook Pro :: Keeps Restarting Randomly In Middle Of Use

Apr 21, 2012

In the last week or so, my computer has been randomly acting up:It has restarted over a dozen times when I pressed the "esc" button to exit from full-screen viewing while I watch video.It has gone to the sign in [initial purpley wave] screen when I was in the middle of simply typing a document.It has rebooted on it's own when I tried to use any application I use regularly- such as Photobooth, etc.And just now, I had to manually press the on-off button to get the computer started because my mouse was frozen. Sounds like there is a ghost in the ol' machine.

Info:
MacBook Pro (15-inch Mid 2010), Mac OS X (10.6.8)

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