Inaccessible boot device after splitting windows 8 partition

Originally my Lenovo IdeaPad Flex 14 came with windows 8 64bit, I upgraded it to windows 8.1. Later I decided I wanted to do a dual boot. The windows8OS partition was about 400GB so I split it using AOMEI Partition Assistant Pro Edition 5.1. The process didnt work, now I keep getting a BSOD "inaccessible boot device" and keeps restarting. All it accomplishes is restarting. How do I fix this problem?
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Welcome to the forum!
Generally failures during a partition resizing are not fixable. The easiest repair would be to just re-install the operating system and resize the partition during the process or just restore the hard drive back to its original condition from a recovery disk or image file. Hopefully you have such options available.
If by chance you were successful in resizing the partition and the machine won't boot correctly then try using the Boot Corrector or MBR Repair feature of your partitioning software. After a successful resizing, the Master Boot Record (MBR) sometimes needs to be updated or repaired in order for the computer to boot successfully.
In addition, when setting up a computer for dual or triple booting Windows operating systems you generally install the older version of Windows first then the newer version. Here is link to a Microsoft article on the topic that you may find informative.........
http://windows.microsoft.com/en-us/windows/install-multiple-operating-system-multiboot#1TC=windows-7
Owner & Operator of the following:
● Lenovo Ideapad Z570 w/ Win 7 & Win 8.1 Dual Boot ● Lenovo Yoga 3 Pro w/ Windows 8.1 ● Toshiba A75-S206 w/ Win 7
● IBM Thinkpad T-23 w/ Win XP ● IBM Thinkpad T-22 w/ Win XP • As well as multiple desktops dual/triple booting XP, Vista and Win 7.
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Hey Tim,
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(Thanks to Donald Jones, Great Basin College for the push in the right direction)
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Windows 7Pro SP1 (x86-64)
Novell Client 2SP3IR8
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(Also, Mcafee Virusscan 8.8)
1.
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3.
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LK

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Can't boot into Windows after splitting Mac partition with Disk Utility

Hi everyone,
I installed Windows 8 with BOOTCAMP, creating a large 871 GB partition with a smaller 127 GB partition for Windows. After installing Windows, I then went back to Disk Utility to shrink the Mac partition and add two new partitions, one for storage and another blank, hoping to use it to install Linux into one day.
I did that, and now Windows doesn't boot. A Windows blue screen tells me I need to use the Windows DVD to repair it.
I tried to use Disk Utility to delete the two new partitions I made and grow the Mac partition back to the max size of 871 GB. But it doesn't let me do this. The Disk Utility log doesn't report an error and thinks it worked but the partition stays the same size. However if I make the partition a little smaller, like 870 GB then it works. I'm wondering if the Recovery partition is hiding there and preventing me from fully expanding the Mac partition.
What can I do?
Here's what I get if I type in sudo gpt -r -vv show disk0:
Code:
gpt show: disk0: mediasize=1000204886016; sectorsize=512; blocks=1953525168 gpt show: disk0: Suspicious MBR at sector 0 gpt show: disk0: Pri GPT at sector 1 gpt show: disk0: Sec GPT at sector 1953525167 start        size index contents 0           1         MBR 1           1         Pri GPT header 2          32         Pri GPT table 34           6 40      409600      1 GPT part - C12A7328-F81F-11D2-BA4B-00A0C93EC93B 409640 1701278816      2 GPT part - 48465300-0000-11AA-AA11-00306543ECAC 1701688456     1269536      3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC 1702957992     1846360 1704804352   248002560      4 GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7 1952806912      718223 1953525135          32         Sec GPT table 1953525167           1         Sec GPT header
Here's what I get if I type sudo fdisk /dev/rdisk0:
Code:
Disk: /dev/rdisk0     geometry: 121601/255/63 [1953525168 sectors] Signature: 0xAA55 Starting       Ending #: id cyl hd sec - cyl hd sec [     start -       size] ------------------------------------------------------------------------ 1: EE 1023 254 63 - 1023 254 63 [         1 -     409639] <Unknown ID> 2: AF 1023 254 63 - 1023 254 63 [    409640 - 1701278816] HFS+ 3: AB 1023 254 63 - 1023 254 63 [1701688456 -    1269536] Darwin Boot *4: 07 1023 254 63 - 1023 254 63 [1704804352 - 248002560] HPFS/QNX/AUX
Here's what I get with gdisk:
Code:
Disk /dev/rdisk0: 1953525168 sectors, 931.5 GiB Logical sector size: 512 bytes Disk identifier (GUID): 6075110F-7CEF-4604-85EE-6231B850E2AE Partition table holds up to 128 entries First usable sector is 34, last usable sector is 1953525134 Partitions will be aligned on 8-sector boundaries Total free space is 2564589 sectors (1.2 GiB) Number Start (sector)    End (sector) Size       Code Name 1              40          409639   200.0 MiB   EF00 EFI System Partition 2          409640      1701688455   811.2 GiB   AF00 1 TB APPLE HDD HTS54101 3      1701688456      1702957991   619.9 MiB   AB00 Recovery HD 4      1704804352      1952806911   118.3 GiB   0700 BOOTCAMP

Okay, the code I typed didn't display properly in the forum. Let me try again.
Here's what I get when I type
sudo gpt -r -vv show disk0:
gpt show: disk0: mediasize=1000204886016; sectorsize=512; blocks=1953525168
gpt show: disk0: Suspicious MBR at sector 0
gpt show: disk0: Pri GPT at sector 1
gpt show: disk0: Sec GPT at sector 1953525167
       start        size index contents
           0           1         MBR
           1           1         Pri GPT header
           2          32         Pri GPT table
          34           6
          40      409600      1 GPT part - C12A7328-F81F-11D2-BA4B-00A0C93EC93B
      409640 1701278816      2 GPT part - 48465300-0000-11AA-AA11-00306543ECAC
1701688456     1269536      3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC
1702957992     1846360
1704804352   248002560      4 GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7
1952806912      718223
1953525135          32         Sec GPT table
1953525167           1         Sec GPT header
And when I type fdisk /dev/rdisk0 I get:
Disk: /dev/rdisk0          geometry: 121601/255/63 [1953525168 sectors]
Signature: 0xAA55
         Starting       Ending
#: id cyl hd sec - cyl hd sec [     start -       size]
1: EE 1023 254 63 - 1023 254 63 [         1 -     409639] <Unknown ID>
2: AF 1023 254 63 - 1023 254 63 [    409640 - 1701278816] HFS+
3: AB 1023 254 63 - 1023 254 63 [1701688456 -    1269536] Darwin Boot
*4: 07 1023 254 63 - 1023 254 63 [1704804352 - 248002560] HPFS/QNX/AUX
Kappy,
I can boot into OS X just fine so if possible, I'd like to avoid reformatting everything. If you know of a way I can add more than 2 partitions with OS X and Boot Camp, please let me know. As far as I know, rEFInd can recognize more than two partitions, but I don't think it can edit partitions on a GPT / hybrid MBR system. Or am I wrong?

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Hi,
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Yolanda
Yolanda
TechNet Community Support

Can't detect boot device after factory format to new HDD

First off, I have an HP Pavilion G6 that I purchased in December 2012. Yesterday I decided to get a new HDD to upgrade it and start fresh. It's a 1TB SSD+HDD hybrid by Seagate. It installed without a hitch, and I used my HP recovery CDs to do a factory format of the disk.
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What could be the problem here? The boot order was never changed in the BIOs. If it were the connector failing I doubt it would load the drive that's always been in the computer. Loading up the newly formatted drive in an external enclosure shows that Windows 8 is indeed on it, but on a 93GB partition even though the drive is 1TB.
I'm at a total dead end here and no one seems to know what to do!
This question was solved.
View Solution.

Hello @kylemcauliffe15,
Welcome to the HP Forums, I hope you enjoy your experience! To help you get the most out of the HP Forums I would like to direct your attention to the HP Forums Guide First Time Here? Learn How to Post and More.
I have read your post on how your notebook is displaying an error message that your new SSD is not detected as a bootable device after a factory format. I would be happy to help you, but first I would encourage you to post your product number for your computer. Below is a is an HP Support document that will demonstrate how to find your computer's product number. In addition, it will also help if you indicate which operating system you are using; and whether your operating system is 32 or 64 bit. The more information you can provide, the better!
How Do I Find My Model Number or Product Number?
Which Windows operating system am I running?
Is the Windows Version on My Computer 32-bit or 64-bit?
Please re-post with the necessary information, this way I will be able to research this further for you. I look forward to your reply!
Cheers!
MechPilot
I work on behalf of HP
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Very Slow Performance After Removing Windows Partition

Hello,
Recently I went through a failed attempt at installing Windows 7 onto my Macbook Pro using boot camp. After this failure I decided to try again another day and used the boot camp assistant to remove the Windows partition.
Ever since doing this, my computer has been running extremely slowly and beach balls on the simplest of tasks. I have tried resetting the SMC and my PRAM all to no avail. I have also used Disk Utility to verify my disk and it says that my disk looks OK.
Has anyone else experienced this/know of any possible fixes?
Thank you for your help!

Hi,
This may happen sometimes due to anti-virus or firewalls also.Disable them and check if it works better...Or, otherwise try these:
- First uninstall the latest Windows Updates.
Click on the Start Button> Type Windows Updates in the Start Search box > Click View Installed Updates at appears at the top > In the Installed Updates screen Sort the updates as per installed date by clicking on the Down arrow next to installed and choose a date or last week...
Uninstall the updates that were installed recently one by one. Do not restart.Click cancel on restart window.
Then perform a clean boot as shown in the link and follow these steps:
Perform a clean boot >
In the start search box type msconfig > Click Startup tab > Click disable all at the bottom > Then Click services > check the box next to Hide all microsoft services at the bottom > Then select disable all > Click Apply > Ok and restart.
Once it restarts then go to windows updates and complete all the updates > Restart and check. If it works better then Go bak to msconfig and enable only the startup programs and services that are required. Enable few and check again..
Let me know if problem continues..
Note:
If you have HP Support Assistant installed on the computer(The Blue Question Mark) then open it ==> Complete all pending Updates & Tuneups==> Restart and Check. It may solve your problem
Although I am an HP employee, I am speaking for myself and not for HP.
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Inaccessible boot device after splitting windows 8 partition

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