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HP notebook with GPT partition table

  1. #1


    Posts : 7
    Win 8 32bit

    HP notebook with GPT partition table


    I need some guys, i brought an HP Pavilion G6 and it comes with an GUID partition table (GPT), EFI and Secure Boot. However i need an MBR partition table, so i tried disk managerment but the option "convert to mbr" is greyed out and when i run the "diskpart - list disk - select disk 0 - convert mbr" i get an error "cannot convert a partition which has a pagefile on it" (disabling the pagefile didn t helped).

    I guess my only other option is to format it, but the notepad comes with an lincesed win8 which i dont wont to loose. So what are my options? I dont ave the CDs, as it s HP packet.

    Take a look at the GPT table

    --

    Update:
    I ve successfully formatted my Notebook. All i had to do is enter legacy mode, disable secure boot and boot from the Windows 7 DVD. So if you ave no intention using Win 8 it won t be a problem to "downgrade" in an UEFI/EFI System.
    Attached Thumbnails Attached Thumbnails 20130129163807498.jpeg  
    Last edited by alevkov; 02 Feb 2013 at 01:40.

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  2. #2


    Posts : 1,925
    Windows 8.1 Pro


    Usually, computers with a recovery partition come with a utility to make recovery disks. I'd suggest using that to make the disks.

    Why do you need an MBR partition?
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  3. #3


    Posts : 7
    Win 8 32bit


    Yes, HP Recovery Managers offers "Media Recovery Creation". Whats the process of it? Do i need a 3rd party software for disk creation and then install those dvds?

    I need an MBR setup for disc encryption.
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  4. #4


    Posts : 1,925
    Windows 8.1 Pro


    It would probably be easier to upgrade to Windows 8 Professional, which includes full disk encryption (Bitlocker) that works with GPT tables. An upgrade can be done online. I use bitlocker, and it works very well.
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  5. #5


    Posts : 7
    Win 8 32bit


    I don't trust bitlocker at all, would rather stay with my prefered enc type. So i m stuck here with this right?
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  6. #6


    Orbiting the Moon
    Posts : 2,975
    Windows 10 x64


    Going to MBR is a bad choice:
    -you need to disable UEFI & SecureBoot and enable legacy mode.
    -you need to re-format the entire drive
    -reinstall the OS on MBR

    GPT is way better and all works well.
    I'm not gonna go back to MBR, not on default GPT machine because It's too much work and GPT has more advantages anyway.
    All encryption works, but I don't need any... also depends what (3rd party?) program you use that needs MBR for encryption.
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  7. #7


    Posts : 1,925
    Windows 8.1 Pro


    Quote Originally Posted by alevkov View Post
    I don't trust bitlocker at all, would rather stay with my prefered enc type. So i m stuck here with this right?
    Why don't you trust bitlocker? It's very stable and secure (so long as you take certain steps, like using a TPM chip, and don't hibernate your computer, and disable any Firewire port you may have, but those issues are there for other full disk encryption as well).

    Not even Microsoft can recover a bitlocker volume. If they could, we would know about it, because the government would have used it in various terrorist incidents where the suspect had encrypted their drives with Bitlocker.

    Of course the paranoid would say that the government would never admit to that, which would also mean the could never prosecute anyone based on it, so it doesn't matter either way.
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  8. #8


    Orbiting the Moon
    Posts : 2,975
    Windows 10 x64


    Also keep in mind that on MBR, one disk will only have a max of 4 primary partitions allowed from which Win8 uses 3 by default so dualbooting will be more problematic in this case.

    Without UEFI or SecureBoot, all sort of malware can boot before you even see the boot screen and that makes security lower even if you encrypt your disk.

    GPT can have up to 128 primary partitions on a single disk.
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  9. #9


    Posts : 7
    Win 8 32bit


    It s TrueCrypt, free and it offers AES+Serpent+Twofish ecryption.

    How to disable UEFI nd Secure Boot on this Notebook?
    Whats the difference anyway? I used MBR for years nd it was allways stable and secure. I dont need 100+ partitions just one for the system and the second for backup.
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  10. #10


    Posts : 1,925
    Windows 8.1 Pro


    I really don't understand why you want to go to the huge hassle of doing this, probably spending days if not weeks getting everything right, when you can have Bitlocker installed and running in minutes. Multiple encryptions is not any more secure than a single secure encryption (there are tons of articles from encryption experts like Bruce Shneier on this), and Bitlocker also uses AES.

    Trust me, I am sympathetic to user privacy, just as you are. I too was skeptical of Bitlocker at first, but I did a lot of research on it, and it turns out to be very well reviewed by cryptography experts, and you don't have to destroy the benefits of UEFI to get it. SecureBoot is a must when using any kind of full disk encryption, otherwise a piece of malware will completely destroy your data when it tries to take over your boot process. Unlike a normal disk, you can't recover an encrypted volume if something like that happens, so it's important to keep your boot process secure.
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HP notebook with GPT partition table
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