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  1. #1
    ROG Member Array d-Metrius's Avatar
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    Question GPT -> MBR: what will I loose, what will cease to work?

    What will I loose and what will cease to work if I turn off UEFI boot in BIOS and repartition my disks (2x750) to MBR?
    Last edited by d-Metrius; 09-07-2012 at 12:53 PM.
    ASUS G75VW (Intel Core i7 3610QM, 12 Gb DDR3-1600, nVidia GeForce GTX 660M 2 Gb, 2x750 HDD, 3D Vision)

  2. #2
    ROG Guru: Black Belt Array rewben PC Specs
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    for a user who knows what to do to his machine, there is nothing to lose. however, if a user that can only depend on vendor-provided recovery procedures to restore their OS, they might need that.

    (i think i read it somewhere that microsoft enforces the use of gpt and uefi for every windows machines produced by the vendors).

    gpt and uefi are robust, but most of us do not require those features daily, and still live happily.

  3. #3
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    Has anyone tried to convert a GPT disk to MBR without reformatting?

    I found this software but I don't want to be the first one to try it, LOL.

    http://www.extend-partition.com/help...-mbr-disk.html
    Last edited by fc2462; 09-07-2012 at 06:06 PM.

  4. #4
    ROG Member Array d-Metrius's Avatar
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    Thanks for your replies, two more questions:

    1) Will ASUS Recovery DVDs still be able to recovery factory state with MBR instead of GPT?
    2) Can I make a fresh install using MSDN Win7 Home Premium Image and activate it using OEM serial number from the notebook sticker?
    ASUS G75VW (Intel Core i7 3610QM, 12 Gb DDR3-1600, nVidia GeForce GTX 660M 2 Gb, 2x750 HDD, 3D Vision)

  5. #5
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    I've just gave this anwser in another thread with the same problem. So here it comes again.

    You can convert it to MBR with a program called "Aomei Dynamic Disk Manager" from Aomei Technology.
    It makes the conversion from the windows enviroment, and do it without dataloss.
    Just remember to check the boot settings in bios, otherwise You might get the following error:
    Bootmgr is missing
    Press ctrl-alt-del to restart.
    If You get the error, then change boot settings in bios.
    I've been there, and done that, so good luck.........

  6. #6
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    Limitation of "Aomei Dynamic Disk Manager" in the demo version:

    "DEMO LIMITATION: The demo version can not commit operations to disk. "

    So, $62 to convert your disc. I'll reinstall
    G46VW - Intel Core i7-3840QM @ 2.8 GHz, NVIDIA GeForce GTX 660m 2GB, Crucial m4 256Gb mSATA SSD, 500 Gb Seagate Momemtus Hybrid HDD, 8 GB RAM, 14" 1366x768/720p screen resolution, Intel Centrino Wireless-N 2230 2x2 MIMO.

  7. #7
    ROG Guru: Gold Belt Array Clintlgm PC Specs
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    Mini tool Partition magic is free and they claim to be able to make the conversion, I have not tried this but the option is there in the program? I've used this program for most other disk operations with out issues.
    G752VY-DH72 Win 10 Pro
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  8. #8
    ROG Guru: Black Belt Array rewben PC Specs
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    Laptop (Model)G55VW-3D
    MotherboardASROCK Z97 EXTREME 6
    ProcessorINTEL 4790K
    Memory (part number)G.SKILL RIPJAWZ 2400MHZ (F3-19200CL10Q-32GBZHD)
    Graphics Card #1ASUS STRIX-GTX980-DC2OC-4GD5
    Graphics Card #2ASUS STRIX-GTX980-DC2OC-4GD5
    MonitorDELL U2713HM
    Storage #1SAMSUNG SM843 480GB X2
    Storage #2WD GREEN 3TB X2
    CPU CoolerSWIFTECH H240-X
    CaseNZXT H440
    Power SupplyTHERMALTAKE TOUGHPOWER XT PLATINUM 1275W
    Keyboard CORSAIR K70 RGB
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    thanks @Clintlgm for the alternative. i never used these tools before, so i have no clue what to recommend.

  9. #9
    ROG Guru: Gold Belt Array Clintlgm PC Specs
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    Rewben, This tool is the old Partition Magic up graded for current use. When I fired it up to move some partitions around I was completely at home with it.
    G752VY-DH72 Win 10 Pro
    512 GB M.2 Samsung 960 Pro
    1 TB Samsung 850 pro 2.5 format
    980m GTX 4 GB
    32GB DDR 4 Standard RAM

    Z97 PRO WiFi I7 4790K
    Windows 10 Pro
    Z97 -A
    Windows 10 Pro

  10. #10
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    I looked in to converting a GPT disk to MBR because my Windows Home Server could not backup GPT partitions. I could not find anything that worked,at least for free. I say the Aomei product but the cost was way to high. I just burned the backup discs and there was another file location on the hard drive that stored the backup drivers and software (cant remember the name right now...on the TF101) and did a clean install.

    Supposedly Windows 8 should boot faster with Gpt partition because it doesnt completely dismount the boot drive so it doesnt have to remount it at boot time.

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