Converting SSD from MBR to GPT.

Turb0Yoda · Sep 29, 2016

So, seeing as I need to reinstall Windows this weekend, I figure I might as well go from MBR to GPT...
My current setup is:
Disk 0: 128 GB SSD- Windows and Programs
Disk 1: 500 GB HDD- Storage of Data.

My main question is, if I convert the SSD to GPT, will I still be able to access the data on Disk 1(Which I assume is under MBR) without having to wipe it. If I just do a normal reinstall of windows, I don't worry about it... Seeing as despite my numerous Windows installs have only dealed with MBR, I figured its good to ask now rather than later...

InvalidError · Sep 29, 2016

The partition table simply tells the OS the logical layout of the drive the partition table is on. Each drive has its own independent partition table. The type you choose for disk 0 has no effect on disk 1 or any other disk.

Turb0Yoda · Sep 29, 2016

InvalidError :

That's what I thought. I just didn't know the exact changed that MBR and GPT have...
Thanks.

Karadjgne · Sep 29, 2016

MBR is the old standard, but reliable. So is frequently used on hdds of 1Tb and under. GPT is a new design that was designed for hdds with larger sizes than what MBR was limited to. There are a few other differences, mostly pertaining to exactly how and where the drive keeps its partition info. Each is only responsible for partitions in its own drive. For your drives, either works basically the same. However, I do believe that if you do swap from MBR to GPT, you will loose any and all data on the drive changed as basically its going through a re-partition requiring a format of the drive.

Turb0Yoda · Sep 29, 2016

Karadjgne :

Which, on the SSD, doesn't matter since it's just the OS and redownloadable programs.

Karadjgne · Sep 30, 2016

True. But thats a lot of work, lotta dl, lotta hunting down programs, lotta time invested, just to change MBR to GPT, for no gain and no real difference on a 128Gb drive.

Turb0Yoda · Sep 30, 2016

Karadjgne :

I need to wipe anyways, and I'm actually gonna multiboot linux, rather than just have a trillion virtual machines.

Karadjgne · Sep 30, 2016

Well that works.

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Converting SSD from MBR to GPT.

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