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I have a problem with my iMac. When I tried booting it, the loading bar went half way, slowed way down, then about 20-30 min later, the bar had gotten all the way to the end... But it stayed on the booting screen. So I forced shutdown my computer, then tried booting up it again. But it didn't even try to load. It just showed a blank white screen. No text what so ever. I tried many different methods to fix this, booting in safe mode, single user mode, reset nvram, recovery mode, etc. But every time I tried any of these methods, I would still get a blank white screen. I am at a loss. I can't even try to reinstall the OS if I wanted to since it only boots to this white screen. Does anyone know how what I can do to fix this? (I believe my computer is a 2010 iMac, if that helps)

Quick Update: I just tried booting it while pushing the power button + option button. Even though the screen is still completely white, now the mouse pointer has shown up on the screen and I am able to move it around. But not sure if that indicates something or not.

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    Possible duplicate of iMac doesn‘t start up – Allan Jun 11 '18 at 1:04
  • @Allan I'd disagree that this is a possible duplication, because the question you link explains he can read something on the screen that points to a problem/error. But for me, there is no text what so ever. So this question is different in comparison to that question. – StrangeRanger Jun 11 '18 at 1:15
  • Loop chime? I meet a similar problem on macbook air. No logo, blank white screen, loop chime. And I found this:ifixit.com/Answers/View/120225/Looping+chime+on+booting As it said, flash Memory maybe corrupted. I can't fix it, hope you can find other way to fix it. – Gino Jun 11 '18 at 5:59
  • I've seen a white screen a few times. We had to let Apple repair those computers. It was a different hardware issue each time. — Although each time that happened the cursor was not visible. — I have seen a black screen with the cursor many times and that's not been quite as serious. Never seen a white screen with cursor, I don't think. — Did you try googling about white screen with cursor? – Joonas Jun 11 '18 at 10:39
  • @Joonas well the curser only occurred when I try booting while holding down the option key. And I have not googled anything about it. Might be best to just take it to Apple to get it fixed. I just don’t want to pay quite a bit of money to find out it was only a $20 hardware issue. – StrangeRanger Jun 11 '18 at 11:49
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Try to boot up using Cmd + Option + P + R to reset the PRAM.

Also try booting up with Cmd + R for recovery mode.

It seems likely the main hard drive has failed.

If you can boot up into Cmd + option, you will be able to boot into a Boot CD or other recovery disc/USB drive to help restore your main hard drive.

  • Unfortunately I have already tried resetting the PRAM, entering recovery mode, and using cmd + option. They don’t work. The only that has that slightest affect is cmd + option. When I do that, I can move the mouse pointer on the screen. That is about it. So you of think that it is likely that the main HD has failed? Is there a way to confirm this? Maybe be connecting another computer to the iMac? – StrangeRanger Jun 11 '18 at 5:18

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