Flashing question mark on my mac

any suggestions?

There are four general causes of this issue:
1. The computer's PRAM no longer contains a valid startup disk setting when there aren't any problems with the disk itself. This can be checked for by pressing the Option key and seeing if the drive appears.
2. The internal drive's directory structure has become damaged. This requires usage of an alternate bootable system to perform the repair.
3. Critical system files have been deleted. This requires usage of an alternate bootable system to reinstall them.
4. The internal drive has died or become unplugged. This is the most likely case if the computer took a sharp impact or there are unusual sounds coming from its location.
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Similar Messages

Flashing question mark on startup Mac Pro 1,1

hi everybody, I have an issue with my Mac Pro 1,1. I bought this computer last week.
Occasionally, at the start up, the screen show a flashing question mark inside a folder. I know this is a HD problem.
Since it doesn't show the question mark every time, I don't know if I resolved my issue following the instruction provided by Apple (resetting PRAM).
Both times that I saw it is when I have unplugged and plugged the power cable of my Mac pro. Now is all ok, but I'm afraid...it is maybe a power supply problem? Or a logic board problem?
Sorry for my english!

The hatter wrote:
When you reset PRAM you 'cause' the flashing "?"
No, I've seen the flashing "?" only when I have unplugged the power cable. (Two times.)
System Preferences : control panel : Startup Disk - set the boot drive
Ok, I've done it yet.
Now the Mac starts up normally.
I only fear that the problem is the logic board or power supply.
Can I exclude this possibility?
I'm ready for a failure of the drive.
Thank you very much!

Persistent Flashing Question Mark Folder Icon, after Repair & Rebuild-THX!

Hello All,
Thank you in advance for any insights.
For the past week, one/two days after a force re-boot, my Quicksilver Mac (OSX 10.4.11 and OS 9 Classic) starts up with the dreaded flashing question mark folder.
The start up disk has always been on "Mac OS X, 10.4.11 on main stuff" ("main stuff" is the name of the hard drive.)
The first time, I ran DiskWarrior and rebuilt the hard drive, which is kind of new as it was replaced in April 2009. Then I ran OnyX and got a clean bill of health. The Mac was shut down at the end of the day as is my habit via turning off the power strip.
If it helps, here's part of the DiskWarrior report:
• 13 files had a directory entry with an incorrect text encoding value that was repaired.
• 340 files had a damaged extended attribute that was repaired.
• 3 folders had a directory entry with an incorrect custom icon flag that was repaired.
• Incorrect values in the Volume Information were repaired.
Disk Information:
Files: 370,719
Folders: 85,161
Free Space: 92.55 GB
Format: Mac OS Extended (Journaled)
Block Size: 4 K
Disk Sectors: 268,171,472
Media: WDC WD5000AAKB-00H8A0
The next day, the flashing question mark folder reappeared. This time I used the original system installer CD (labeled Power Mac G4 OS X Install). Disk Utility made its repairs. And this time, the computer was put to sleep instead.
In the morning, it woke up, the wireless optical mouse worked for a few seconds, the hard drive is humming along then all of a sudden the arrow (mouse) froze and none of the keys on the keyboard functioned.
After some research, I deleted the energy saver preference (powermanager.list?) and ran Disk Utility again. And again, I shut down b/c I wasn't going to use the Mac for a day or two.
This afternoon, the pesky icon reappeared at start up. At first Disk Utility didn't see the hard drive then I restarted and the hard drive was selectable though not mounted. It was repaired and verified yet once again. Btw, when I did hard drive test, the message says something to the effect that it appears to be working properly.
My question is, might anyone know what's wrong? I've been backing up after every use and I have a laptop. But I love working on the desktop and if this issue can be fixed, that would be perfect.
As an aside, I've read that I should do a clean install. Would doing a clean install mean I need to re-install OS 9 as well as all other all other software programs-Adobe Creative Suite, Quickbooks, Verizon DSL, printer drivers etc.?
One final question, can I continue to boot up from the CD, repair then restart or will I damage the computer? Once it restart, everything seems to work normally and well.
Many, many thanks for reading and any help would be greatly appreciated!
Have a wonderful weekend.
Sam

Disk damage can also affect the startup sequence, but I think what you have already done should have repaired any disk damage, or given you more information.
Once you have ruled out Disk damage, you get the flashing question mark when your Mac cannot find:
• the preferred operating System
• of the preferred version
• on the preferred startup drive.
All these items are stored in the parameter RAM, backed up by a 3.6 volt, non-recharging 1/2-AA size battery that lasts three years or so, unless you turn off all power at night.
If you cannot remember when you last changed that battery, now is a good time. Be sure to reset the PMU/PRAM after installing the new battery.
Message was edited by: Grant Bennet-Alder

Flashing question mark on mac book pro,with grey screen when turned on?

flashing question mark on mac book pro,with grey screen when turned on?

Press the power button down to force a emergency hardware shutdown and hold the option/alt key down and reboot
If you see your OS X boot partition, then click it and the arrow, head to System Preferences > Startup Disk and reset it. Done.
Folder with question mark issue
If that doesn't it, then do a #2 PRAM reset and try the above again.
..Step by Step to fix your Mac
If no OS X boot volume appears in Startup Manager, then OS X is corrupted.
Try more of the Steps above (like 1-8) then if that doesn't work.
Create a data recovery/undelete external boot drive
Once you got your data off, erase and reinstall OS X onto the MacintoshHD partition and then restore from TimeMachine or bootable clone if you have it. or build new and return users files from the data recovery drive.
Most commonly used backup methods
If the drive doesn't appear in Disk Utility it might be dead or there are further complications let us know for further assistance.
Install/upgrade RAM or storage drive in Mac's
My computer is not working, is my personal data lost?
https://discussions.apple.com/community/notebooks/macbook_pro?view=documents#/?p er_page=50

Mac mini (late 2012) when booting shows flashing question mark folder

Hello, so after installing software update to my mac mini *late 2012* it froze for few mins so then I rebooted it and now it wont boot it shows flashing question mark folder, I can't use the boot buttons because it asks me for a frimware password and I dont remember setting one up so how can I fix it .

If you need to reset the firmware PW see:
http://reviews.cnet.com/8301-13727_7-57542601-263/efi-firmware-protection-locks- down-newer-macs/

Mac Mini Flashing Question Mark

I'm trying to help a friend troubleshoot his Mac Mini. Based on the model number (A1103) it appears to be a late-2005. I've tried the following:
Unplug keyboard and mouse & boot: still boots to flashing question mark
Option boot to try to get to startup manager to select startup manager: boots to restart arrow and right facing arrow; there is no response from clicking on right facing arrow.
Boot to install disk holding C key during startup to get to Disk Utility to repair disk: will not boot to startup disk, instead boots to flashing question mark.
Reset PRAM: no difference.
Anyone have any suggestions?
Thanks in advance.

There is no valid system for the Mac to boot into. Reinstall Mac OS X.

Mac Mini doesn't work:appair only a flashing question mark on the screen

I try to startup the Mac Mini but the only think that appair on the screen is a white page with in the middle a folder with a flashing question mark.
The Operative Sistem doesn't work:i wanted to try to inser into the CD of OS X and reinstall all but there is just a CD into the Mac but again with botton or with muose clicked ,the CD doens't go out.
Please Mac's users help me.
Bye. Alskarez
Mac Mini Mac OS X (10.4)

The flashing question mark means that the mini is not able to find a copy of MacOS to boot from, which is likely why you inserted the OS X disc.
If the disc that is stuck in the system is the original MacOS install disc that came with the mini, you should be able to boot to it by holding the C key down as the system is starting up. Some non-Apple or wireless keyboards don't allow starttup modifier keys to be used, but if yours is an Apple keyboard it certainly should. If it IS the original install disc in the system and the C key doesn't work, and you're left with the flashing question mark, it sounds like you may have a significant hardware fault which may have caused the mini to fail to see either optical or hard drives.
It may be that in that situation a PMU reset (for PPC minis) or an SMC reset (for Intel models) might restore operability, but if not, then you'll likely need the assistance of an Apple approved service provider.
To reset the PMU in a G4 mini:
- Unplug all cables from the computer, including the power cord.
- Wait 10 seconds.
- Plug in the power cord while simultaneously pressing and holding the power button on the back of the computer.
- Let go of the power button.
- Press the power button once more to start up your Mac mini.
To reset the SMC on an Intel mini:
-From the Apple menu, choose Shut Down (or if the computer is not responding, hold the power button until it turns off).
-Unplug all cables from the computer, including the power cord and any display cables.
-Wait at least 15 seconds.
-Plug the power cord back in, making sure the power button is not being pressed at the time.
-Then reconnect your keyboard and mouse to the computer.
-Press the power button on the back to start up your computer.

My MB pro doesn't recognize any start up discs. I have the flashing question mark, but when I press option/alt, I'm only prompted to start the internet recovery. Afterwards the Mac OS X Utilities pops up, but there's no start up disc?

I have the flashing question mark, but when I press option/alt, I'm only prompted to start the internet recovery. Afterwards the Mac OS X Utilities pops up, but there's no start up disc when I try to reinstall Mac OS x or anything.

Hello, sullivja.
Thank you for visiting Apple Support Communities.
Here is an article I would recommend going through when experiencing this issue.
A flashing question mark appears when you start your Mac
http://support.apple.com/kb/ts1440
Cheers,
Jason H.

On start up my mac is showing a folder and flashing question mark sign?

On start up my mac shows a folder sign & flashing question mark?? Help and Why??

Question (?) Mark, Blinking Folder, or Gray Screen at Startup
These are related but not identical issues. Their causes are outlined in Intel-based Mac- Startup sequence and error codes, symbols. Solutions may be found in:
A flashing question mark appears when you start your Mac
Mac OS X- Gray screen appears during startup
In most cases the problems may be caused by:
Problem with the computer's PRAM - See Resetting your Mac's PRAM and NVRAM.
Boot drive's directory has been corrupted - Repair with Disk Utility.
Critical system files are damaged or deleted - Reinstall OS X.
The disk drive is physically non-functional - Replace the hard drive.
Repair the Hard Drive and Permissions
Boot from your Snow Leopard Installer disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Utilities menu. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the installer.
If DU reports errors it cannot fix, then you will need Disk Warrior and/or Tech Tool Pro to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.
The main difference if you are using Lion or Mountain Lion is that you must first boot from the Recovery HD:
Boot From The Recovery HD:
Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
Reinstall Snow Leopard Without Erasing The drive
1. Repair the Hard Drive and Permissions
Boot from your Snow Leopard Installer disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Utilities menu. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the installer.
If DU reports errors it cannot fix, then you will need Disk Warrior and/or Tech Tool Pro to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.
2. Reinstall Snow Leopard
If the drive is OK then quit DU and return to the installer. Proceed with reinstalling OS X. Note that the Snow Leopard installer will not erase your drive or disturb your files. After installing a fresh copy of OS X the installer will move your Home folder, third-party applications, support items, and network preferences into the newly installed system.
Download and install Mac OS X 10.6.8 Update Combo v1.1.
Reinstalling Lion/Mountain Lion Without Erasing The Drive
Boot to the Recovery HD: Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
Repair the Hard Drive and Permissions: Upon startup select Disk Utility from the main menu. Repair the Hard Drive and Permissions as follows.
When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the main menu.
Reinstall Lion/Mountain Lion: Select Reinstall Lion/Mountain Lion and click on the Continue button.
Note: You will need an active Internet connection. I suggest using Ethernet if possible because it is three times faster than wireless.

Just got a new mac pro - flashing question mark and more...

I wonder if anyone can help me solve this problem. i just bought a mac pro, turned it on and a flashing question mark blinked on the screen. i got on my mac book to search apple.com for the problem and it said to boot with the install disk and hold the c key. i did all that and now i cannot take out the disk. i'm still unable to select a startup disk either. i currently have a mac g5 and loved it but it is old am really surprised with having this problem. can anyone help?

If it's new and it does that, it's very likely a loose component. If you feel comfortable doing so, open the case, and make sure that the RAM is firmly seated in its sockets and the drive cables firmly connected to the drives and the circuit board. Also check the power cables to the drives.
Depending on how the computer was handled in transit, these things can get jostled loose, and loose RAM or cabling will give you what you observe.
The other possibility is an outright hardware fault. Though rare, there's always hardware that resides in the tail of the service-life bell-curve due to some manufacturing / material defect. Apple is historically excellent about replacing same. You need to contact AppleCare or bring the unit to an Apple store or authorized repair center.

Help with FLASHING QUESTION mark when starting the mac

Hi All,
My mac just froze,i had to do force shut down,when i restarted it i had the flashing question mark.Did all the instruction that are given in the site:restarting with the installation CD and then using the *disc utility*-BUT i could not find the hard drive that i need to do the "repair disc " on.So i did what the document said and i reset the PRAM-still my hard drive does not show up in the disc utility.I also tried to reset the SMC but again -same result.
please please try and help me,is my HD doomed? is there anything else i should try?

I have the exact same problem.
Today, when I turned my macbook on, it was so slow, that I decided to restart it. When I turned it on again, I got the folder with a questionmark in it on the display. Tried to put the installer CD in, but it couldn't find the HDD. Ran the Disk Utility, which said: "Invalid node structure" and "Invalid record count".
I think the HDD is "destroyed", because it makes strange sounds. But how? And why?
The Macbook isn't even a year old.
Any help?

Flashing folder with question mark on startup mac mavericks

Hi buddies, I've an old macbook (those with pretty die hard silver case).
last night when i just turned it on, after days a flashing folder with a ? mark on it appeared... and nothing..!
I read this A flashing question mark or globe appears when you start your Mac
but i wanna know if my datas on my hard disk would be safe or not... and what should I do keep them safe.
If I loose my files and data, you can name me dead!!!

Your data are safe if you have them separately backed up. Otherwise, there is no assurance they are safe. Given the nature of the problem it's too late to backup your data, so you will need to try reinstalling OS X and take your chances all will work out well. Hopefully, it will.
If you have Snow Leopard installed:
Clean Install of Snow Leopard
     1. Boot the computer using the Snow Leopard Installer Disc or the Disc 1 that came
         with your computer. Insert the disc into the optical drive and restart the computer.
         After the chime press and hold down the "C" key. Release the key when you see
         a small spinning gear appear below the dark gray Apple logo.
     2. After the installer loads select your language and click on the Continue
         button. When the menu bar appears select Disk Utility from the Utilities menu.
         After DU loads select the hard drive entry from the left side list (mfgr.'s ID and drive
         size.) Click on the Partition tab in the DU main window. Set the number of
         partitions to one (1) from the Partitions drop down menu, click on Options button
         and select GUID, click on OK, then set the format type to MacOS Extended
         (Journaled, if supported), then click on the Apply button.
     3. When the formatting has completed quit DU and return to the installer. Proceed
         with the OS X installation and follow the directions included with the installer.
     4. When the installation has completed your computer will Restart into the Setup
         Assistant. Be sure you configure your initial admin account with the exact same
         username and password that you used on your old drive. After you finish Setup
         Assistant will complete the installation after which you will be running a fresh
         install of OS X. You can now begin the update process by opening Software
         Update and installing all recommended updates to bring your installation current.
Download and install Mac OS X 10.6.8 Update Combo v1.1.
If you have Lion or later installed:
Reinstall Lion, Mountain Lion, or Mavericks without erasing drive
Boot to the Recovery HD:
Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
Repair
When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported then click on the Repair Permissions button. When the process is completed, then quit DU and return to the main menu.
Reinstall Lion, Mountain Lion, or Mavericks
OS X Mavericks- Reinstall OS X
OS X Mountain Lion- Reinstall OS X
OS X Lion- Reinstall Mac OS X
     Note: You will need an active Internet connection. I suggest using Ethernet
                 if possible because it isthree times faster than wireless.

Flashing question mark folder- Mac Help instructions arent working

My computer froze yesterday and when I re-started it, it had the flashing question mark folder.
I tried all of these steps http://support.apple.com/kb/ts1440
and these steps http://support.apple.com/kb/TS2570
I can't get anything to pop up upon start up other than the folder (ie when I hold down the C key with the Instal DVD in it thinks for a minute, spits out the DVD and the folder comes back).
If anyone has any ideas I'd greatly appreciate it. I'm even fine with erasing my hard drive if need be, I just want to get the computer back up and running.

You can go no further unless you're able to boot from your installation DVD. If your machine came with Snow Leopard installed, that would be the gray disc that was in the box. If you upgraded to Snow Leopard, then it would be the retail disc you used to upgrade. No other disc will work.
With the machine powered on, insert the disc. Hold down the power button until it shuts off. Press the power button again to turn it back on, then immediately hold down the C key. Keep holding until you see the Apple logo on the display.
If this procedure doesn't work for you, and you've done everything you say you've done, then you have either a hardware fault or a damaged disc.

My MBP (mid 09)/ folder with a flashing question mark.

My MBP (mid 09) is showing a folder with a flashing question mark. I tried the usual things like PRAM Reset and booting with a external drive. I also changed the hard drive and could use it as a external drive on an other Mac - so this seems to work. Another drive could not be used too. The Apple Hardware Test does not work - my Superdrive is broken. Any ideas?

https://discussions.apple.com/docs/DOC-3046
https://discussions.apple.com/community/notebooks/macbook_pro?view=documents

Macbook Air won't startup, flashing question mark

Hello everyone, here's the problem:
Recently (Sep) I've bought a new macbook air (2012, 128gb SSD). After a few months of using it the following problem happened: while surfing on the web, my macbook hang up (I couldn't press anything or do anything, the system wouldn't respond), so I shut it down forcefully (by holding the power button), after this my computer wouldn't boot at all: a flashing questioning mark appeared on the grey screen. I know what it means (I'm an Intel engineer and know quite a bit on the subject), so I thought the SSD was dead. Brought it to the shop a bought it at (M-video, Russia, Nizhni Novgorod). After 21 day (sic!) they gave it back to me working fine and said that when they opened it - it worked OK, they tested it for 5 days with reboots and it was OK. After 1 month of using it after I got it back (today) it happened again: the OSx hang -> force shutdown -> question mark on startup.
Could you please tell what can it be? It's obvious that it's no a hardware problem (in this case it wouldn't happen from time to time but be a permanent defect after the first time it occurred). I tried all the recipes found on the internet (command + alt + P + R; R to get recovery mode - disk utility sees only 1 partition on disk0 of 1.8 GB (I guess it's partition with the base system) and won't let me do anything - all options are grayed out; SHIFT won't let me into safe mode - no idea why; etc.). I also don't have a CD or anything with the mac OS, however even Internet recovery won't help - no targets to install it when it comes to it.
Have tried almost anything and asked almost anyone among my IT-connected friends, but in vain. Thank you in advance for your help! Will appreciate any piece of advice.

Install or Reinstall Lion/Mountain Lion from Scratch
Be sure you backup your files to an external drive or second internal drive because the following procedure will remove everything from the hard drive.
Boot to the Recovery HD:
Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
Erase the hard drive:
1. Select Disk Utility from the main menu and click on the Continue button.
2. After DU loads select your startup volume (usually Macintosh HD) from the
      left side list. Click on the Erase tab in the DU main window.
3. Set the format type to Mac OS Extended (Journaled.) Optionally, click on
        the Security button and set the Zero Data option to one-pass. Click on
      the Erase button and wait until the process has completed.
4. Quit DU and return to the main menu.
Reinstall Lion: Select Reinstall Lion/Mountain Lion and click on the Install button.
Note: You will need an active Internet connection. I suggest using Ethernet if possible
            because it is three times faster than wireless.
If this fails then see: OS X (Lion/Mountain Lion)- About OS X Recovery.

Flashing question mark on my mac

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