Macbook 2010 won't boot - flashing question mark, prohibitory sign then Apple icon

Okay so some of this is my fault. We'll get to that later.
A few months back this Macbook my uncle gave me (without the Mac OS X Installer DVDs it came with) failed to boot - displaying the spinning gear/Apple icon/grey screen so many others have experienced.
I've done everything that could be done without the Installer DVDs - reset the PRAM, the SMC, attempt to go into Safe Mode (failed - only displays the progress bar until it fills up then back to the grey screen)
I've also done fsck -fy and it would always return to either "FILE SYSTEM WAS MODIFIED" so I'd run it again to receive the result "The volume Impala appears to be okay", but whenever I would hit "reboot" it's like nothing ever happened.
I got a hold of a(n illegal) copy of someone else's Installer DVDs from the net - not so I could install that but so I could load DiskUtitlity from a bootable flash drive to transfer files to my external HD by the restore option in DiskUtility - worked for a bit (ran verify permissions, repair disk permissions, the whole shebang) but then failed, was only able to copy the "Applications" folder by restoring the volume to the external HD I had plugged in, and nothing else.
So when just this afternoon, I was fiddling with the prompt that displayed whenever you entered single-user mode, trying to move documents from inside the Documents folder into the Applications folder (because I thought that if I did "restore" all over again it would copy needed files into my HD like it did the last time - the /Volumes directory disappeared.
What could have caused this? I know that this is what's causing the flashing, alternating icons during attempted startup, but I swear that I didn't even think of doing anything to modify the /Volumes directory. One minute I was entering files /Volumes just to fiddle with it, then proceeded to go in deeper to cp or mv files into the /Applications directory, the next it was gone.
What should I do? I contacted the local Power Mac Center nearby to check if they're carrying the Mac OS X Snow Leopard Installer DVDs but I'm pretty sure that those things are limited now to the U.S. and the U.K.?
Please send help/advice, I'm broke and pretty much very very desperate.
Thank you for your time.

and also we have this older MacBook (2007 I think) that flashes the prohibitory sign (circle with slash going through it) whenever I try to boot it - started doing that a few days ago and I swear on both laptops that there are no peripherals that are plugged in except for the MagSafe (this older MacBook has no batteries installed since the last one shot out two years ago and we haven't had the money to replace it..)
Could the MagSafe be the problem? Because I haven't been doing anything dangerous on this older one (even cleared out some old files/videos to free up disk space) but still, it went ahead and got into a coma.
I can only access it via Safe Boot (pressing shift right after I power it up) and thankfully, its FireWire port using Target Disk Mode.
How I wish I could use Target Disk Mode on the later (2010) model, but alas, the only solution is to purchase the Installer DVD - only the Apple Reseller I contacted hasn't contacted me back yet.

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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.
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2. After DU loads select your startup volume (usually Macintosh HD) from the
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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
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i have read this: http://support.apple.com/kb/TS1440
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this shows up when a bootable drive cannot be found, the boot drive is damaged, or the internal drive doesn't have an os installed at all.
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Thanks for the reply. Aside from finding that holding the mouse button down at boot might cause a flashing question mark, I already knew all that. I will ask the owner if she is leaning on the trackpad button when she starts up her computer in the morning.
I've already reset the power manager and the PRAM; we'll see if that makes any difference. The puzzling thing here is that the problem is intermittent.
I also need to ask her if, when the computer does boot to the question mark, there has been a chime first. Somehow I think there has to be, for the system to have gotten as far as looking for a boot drive. I couldn't find anything useful in the logs; not surprising, since if it can't find a drive to boot to, it won't have anything to write a log to.
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As long as the parts were replaced by someone authorized to do the repairs, you should still be fine. This error indicates that they computer isn't able to find a disk to boot to.
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So I have had this problem before and took it to the apple store, where they fixed it, but now the problem is back again.
When I try to start up the machine, all I get is a folder with a flashing question mark in the middle, as though it does not detect my hard drive.
When I book into the OSX Install DVD, and go to Disk Utility, it does not see the hard drive.
The problem happens when my osx freezes, and I do a hard-shutdown.
I took it to the apple store once, and they fixed it, without losing any data, but I do not want to go back to them, as that takes time out of my day.
Is there anything I can do to fix the issue myself?

Hi nxd,
Welcome to Apple Discussions.
It definitely sounds a bit more serious this time. I'd imagine that last time they just reinstalled the OS and had you on your way. The folder with the question mark indicates that the startup sequence can't find an appropriate boot volume (your HD). From my experience this means one of two things and more often the latter:
1.) Somehow the OS was corrupted and an archive & install is necessary to restore order
2.) The HD has failed and requires either a repartition (followed by an install) or the drive itself has failed and requires a replacement.
The fact that you can't see your HD in Disk Utility off the restore disc is not a good indication. If the OS needed to be reinstalled you'd see the HD here, at the very minimum. The good news, I suppose, is that you can at least boot off the restore disk. I've seen many a failed/failing HDs prevent the system bus from evening reading the optical drive.
With all this being said, I'd really recommend getting the machine to an Authorized Service Center (or Apple Store) and have them take a look at things. The HD may require replacement, which would also result in the very high potential for data loss.

Oh S_it, my intel iMac 2008 wont boot, flashing question mark is all I get.

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You don't need those discs, unless you need to test for Hardware, or reinstall the original operating system.
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http://docs.info.apple.com/article.html?artnum=2238
Then attempting a data recovery if there is no backup*:
http://www.macmaps.com/backup.html#RECOVER
If there is a backup, initially try to repair the directory*:
http://www.macmaps.com/directoryfaq.html
- * Links to my pages may give me compensation.

Same problem, old topic - won't boot get question mark folder

I have a G4 14" ibook that has stopped working. When I boot I get the folder with the flashing question mark. here are some specifics:
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- removed logic board and had a circuit technician inspect all solder joints under very high mag with no problems evident
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I really could care less about the computer at this point as it has run its course, but it is now one of those things that if I don't figure out the problem I'll begin loosing sleep.
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If the optical drive on the iBook G4 is failing, the only way to load 10.3 on a G4 14" (assuming it came with 10.3 or less), is via another PowerPC Mac, or an external Firewire optical drive.
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http://discussions.apple.com/thread.jspa?threadID=1490798&tstart=0
Newer versions of iLife may install depending on system requirements:
http://support.apple.com/kb/TA27615
http://www.apple.com/ilife/systemrequirements.html
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Message was edited by: a brody

When I open my MacBook Pro there is a flashing question mark

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Contact Apple or an authorized Apple service provider.
(116347)

Macbook 2010 won't boot - flashing question mark, prohibitory sign then Apple icon

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