Can't install Windows 8.1 on Macbook Pro (mid 2012) after installing/removing refit

So I recently installed and removed rEFit on my macbook (I was trying to clone a windows install to the drive to keep it handy, and thought I'd need it to boot from the install), and haven't been able to get Windows 8.1 (x64) to install since -- I keep getting an error message (0x C0000005). I've tried removing all the partitions the installer makes, leaving extra room, etc, but nothing works. I tried to run the EFI updater, but it says it isn't supported by the system (I downloaded the 9,1 version).
Anyone have any ideas?

Quick update -- I've tried resetting the pram, running the windows startup repair, and running bootrec.exe through the command prompt. No luck with those so far.
Just opened disk utility and saw the screenshot below....could be part of it, but I've deleted the partitions several times...

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Iam new to coding. please help me.

try the solution posted by kunu here and report back
https://discussions.apple.com/thread/5105056?tstart=0

How do I install windows 7 on a macbook pro mid 2009 using bootcamp and no optical drive?

How do I install windows 7 on a macbook pro mid 2009 using bootcamp and no optical drive?
My optical drive is non-functional and I want to dual boot with win7. The only problem is my macbook does not boot from USB at all, even when I hold th ALT key down when it is starting up.
-I have a flashdrive with win7 on it.
-I mounted the ISO of win7 with toast for bootcamp to do its thing.

Good luck.
Consider this a bump so that hopefully someone with better news spots your thread.
Allan

My Macbook Pro mid 2009 after installing mavricks restarts instead of shutdown !

My Macbook Pro mid 2009 after installing mavricks restarts instead of shutdown !
The strange also that after shut it down with the power button & close the laptop screen, If i connected the power cord the laptop start booting !
I've reseted the SMC & PRAM but still the problem
Also repaired the disk permissions !
Please advice what shoudl i do ?
Note: alot of times while the laptop in sleep mode i hear the fans !, and it goes very hot if i put it in my laptop bag in sleep mode !
Regards
My Mac info:
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Classic kernel panics. Run the Apple Hardware Test suite, extended tests at least twice, followed by Rember. See
OS X About kernel panics,
Technical Note TN2063: Understanding and Debugging Kernel Panics,
Mac OS X Kernel Panic FAQ,
Resolving Kernel Panics,
How to troubleshoot a kernel panic, and
Tutorial: Avoiding and eliminating Kernel panics for more details.

HT5639 Unable to install windows 8 in my Macbook pro 13" .. after the upgrade ..:(

I have updated my Mountain Lion (10.8.3) yesterday .. which includes the latest Bootcamp update which allows the user to install Windows8.
Am unable to install Windows8 .. "Windows 8 is not supported on this Mac" .. My MacBook Pro is ..13-inch, Mid 2010.
Any idea ????

Welcome to the Apple Support Communities
See > http://support.apple.com/kb/HT5634 Mid 2010 and newer MacBooks Pro support Windows 8, except the Mid 2010 13-inch MacBook Pro, so unfortunately, you can't install Windows 8 officially on your computer.
However, Windows 8 is completely compatible with your computer, but Apple didn't want to provide compatibility for your MacBook. There are some guides in Macs forums (I think there's one here) that helps you to install Windows 8 on your unsupported computer through Boot Camp, installing the Boot Camp drivers, too. Do that at your own risk

Can I use 1333MHz RAM in a MacBook Pro Mid 2012?

Hi.
My MacBook Pro Mid ´12 comes with 4GB 1600MHz RAM. I upgraded this to 8GB 1333MHz. Does this cause a hot MacBook Pro near the battery?

phlek wrote:
Can the 1333MHz RAM be the problem for heating?
Not likely. Usually it will be a function of the stress placed on the CPU/GPU by applications. Hardware faults may be another source of heat such as the fans.
I will buy Corsair Vengance, what do you think about this brand?
If the specifications are the correct ones, it should work.
Ciao.
Message was edited by: OGELTHORPE

How to Install Windows 7 on 15" Macbook Pro (Mid 2010)

Hi,
I am trying to install Windows 7 on my mid 2010 MBP 15" (Boot Rom: MBP61.0057.B0F). However, the internal DVD Rom stopped to work, so I got both an external DVD Rom and a bootable USB stick (with Windows 7). The OS X is 10.8.3.
When I run the Bootcamp Assistant, after re-divde the disk and reboot, it stuks (with either the USB stick or the external DVD Rom) at the Apple logo screen (sometimes before that -- the scree is all white). When I reboot again, it reports no bootable device.
Does anyone know how to solve this? Thanks a lot!

I agree with the optical drive, mine acted strange, and i thought people were crazy and my drive was shot, but a simple cleaning disc worked miracles.
But- are you trying to reboot with both the USB install and the DVD install both plugged in? that would definitely cause confusion.
Do this, reboot with NOTHING plugged in. Once you hear the Mac chime, immediately press and hold option.
You should only see the Mac HD, and Recovery Partition.
THEN plug in your external DVD, and wait a min or two, you should see a disc icon appear next to the recovery partition that says something like windows. If that doesnt appear after a min or two, unplug it and put the USB stick and do the same thing. I had to do it this way on my mid 09 MBP.
Let me know if this works to start the install. If not we may have to start over with Bootcamp Assistant

Can i use an external drive in macbook pro mid 2012?

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I'm not sure why it wouldn't? The Apple external USB SuperDrive will not work with your machine, but there are a lot of other third-party drives out there that should have no problem. Even though you have USB 3.0 ports on your machine, any USB 2.0 external optical drive should be fine -> a slow optical drive (and they're all slow at writing and reading asa limitation of the media, not the port) is the norm.
If I were you, I would just check out one of the $30-50 Asus, LG, etc., external optical drives out there. It should work with any Mac.
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Samsung SSD 840EVO not booting from macbook pro mid 2012 after cloning

Hello there,
I guess i'm so stuck with the SSD that i have purchased.
Here is the details:
SSD - Samsung SSD 840 Evo 250GB
MacBook Pro - 13-inch, Mid 2012
Model Identifier: MacBookPro9,2
Processor 2.5 GHz Intel Core i5
Memory 16 GB 1600 MHz DDR3
Graphics Intel HD Graphics 4000 1024 MB
Software OS X 10.9.1 (13B42)
Boot ROM Version: MBP91.00D3.B08
SMC Version (system): 2.2f44
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Anjillan

yea... i have tried all those...
can you confirm if this is ok to buy:
http://www.ebay.ca/itm/New-HDD-Hard-Drvie-Cable-for-13-MacBook-Pro-A1278-MD101-M D102-821-1480-A-2012-/181269577616?pt=LH_DefaultDomain_0&hash=item2a34823f90&_uh b=1
or
http://www.ebay.ca/itm/NEW-MacBook-Pro-Unibody-13-A1278-2012-md101-102-HDD-Hard- Drvie-Cable-821-1480-A-/121183868039?pt=LH_DefaultDomain_0&hash=item1c371f1487&_ uhb=1
or this one..??
http://www.ebay.ca/itm/for-APPLE-MacBook-Pro-13-A1278-HDD-Hard-Drvie-Cable-MD101 -MD102-821-1480-A-2012-/331060187298?pt=LH_DefaultDomain_0&hash=item4d14b990a2&_ uhb=1
i guess i aint gotta buy those brackets again..?
Thanks
Anjillan

How can i install windows games in my macbook pro

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As eww said, that computer isn't specifically made for gaming. To get advanced graphics in a game, your computer needs what is called a "discrete" graphics processor, or GPU. This means a seperate chip that processes graphics. In Apple laptops, these are only found in the 15" and 17" MacBook Pro. It is not common to find these in laptops in general that are not expensive and high-end. What you have in yours is an "on-board" or "integrated" GPU. This means that graphics processing is done by a small portion of your main processor (the Intel i5 board). This takes away a portion of primary prossessing and dedicates it to graphics. This works perfectly find in most scenarios, but video rendering, gaming, and 3-D graphics tend to suffer. Most high-end, modern games require discrete GPUs to run at full quality these days.
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Apple only supports Windows on certain hardware.
http://www.apple.com/support/bootcamp/
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http://refit.sourceforge.net/
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I even admit I don't know everything myself, but I experiment on a separate piece of Mac hardware (out of warranty/AppleCare) designed for this purpose so in case something screws up I'm not taking down my only machine and can use the other to get online and find solutions.
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Can't install Windows 8.1 on Macbook Pro (mid 2012) after installing/removing refit

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