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MBR vs. GPT

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I have a Vista notebook with:

C: Vista and all other files
D: HP Recovery partition
E: Optical drive
F: USB drive

I intend to split C so I have a dual boot Vista/Win 7 system as follows:

C: Vista
G: Win 7
H: My non-OS files
unused: Reserved for Ubuntu and expansion of other partitions
D: HP recovery partition
E: Optical drive
F: USB drive

I have 2 decisions to make:

1. C is currently 285GB. I need to decide on the size of each partition,
2. Whether to use MBR or GPT.

Presently, I do not have Win 7 compatible backup, or partitioning software that will support, as far as I know, GPT.

My question is should I convert all drives to GPT when I have such software?

Or, am I stuck with MBR?

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Hello Howard Kaikow,

Thank you for using Acronis Products

Current version of Acronis Disk Director do not support dynamic disks or disks with GUID partition tables.

You can install Acronis Disk Director on Windows that runs on dynamic or GPT disks, but you will not be able to manage them.

Acronis Disk Director Lite, which is a component of Acronis Backup & Recovery 10, supports GPT and dynamic disks.

We would recommend you to divide 100 GB's between two operating systems, that will be enough to install OS and some applications.

Yes, all drives should be converted to GPT in this particular situation.

Thank you.