Small Issue With Reformatting C Drive

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dahcakedemon

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Sep 26, 2015
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I am about to format my drive in the installation setup on the windows cd(it is windows 10) but it says: Windows cannot be installed to this disk. The selected disk is of the GPT partition style. What should I do in this case? Should I boot back normally from the BIOS and format my C: drive into the NTFS style?

Thanks!
 
Solution
A
The NTFS ("New Technology File System") has nothing to do with your situation, so forget about it.

Because you intend to fresh-install the Win 10 OS onto a GPT-partitioned drive, it's necessary that you boot to the Win 10 installation DVD you're using in the UEFI-interface.

With the DVD inserted in your optical drive and the GPT-partitioned disk connected, start the bootup process and access your motherboard's Boot Menu by pressing the appropriate function (F or other) key to display the Boot Menu. (Different motherboards require their own special key to access the boot menu). Usually the appropriate key will be listed at the beginning of the bootup process and you can also check your motherboard's User Manual for the appropriate key...
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dahcakedemon

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Not yet. I didn't want to delete anything important by accident. There were 4 partitions I believe
 
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captaincharisma

captaincharisma

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delete anything inportent by accident? are you trying to reinstall windows over an old copy or something else

 
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dahcakedemon

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I am trying to reformat my hard drive and I heard that you can do it this way
 
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captaincharisma

captaincharisma

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you can, but formatting your hard drive erases everything on it so even if you figure it out you will still lose all your data

 
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dahcakedemon

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True, now I feel so stupid. What I meant was that I didn't want to make windows uninstallable on that partition because it was a different style
 
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dahcakedemon

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Update: I just tried deleting the partitions, than created a new partition from the unallocated space, and it still couldn't be installed.
 
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JBURNS489

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You probably need to just convert the hard drive to GPT. Go back and delete any partitions, then where it says where do you want install windows press shift f10. It will bring up a command menu. Type in "diskpart", then "list disk", then "select disk [disk number]", "clean", and "convert gpt". You can then close the command menu or type "exit", and that should fix it for ya . If you still get the issue, it's because your PC is trying to boot in UEFI mode but your hard drive is not configured for UEFI. If that happens, just google how to boot in UEFI mode for windows 10.
 
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dahcakedemon

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Are you sure I should do that because it is already gpt. can I convert it to nsft?
 
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ArtPog

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The NTFS ("New Technology File System") has nothing to do with your situation, so forget about it.

Because you intend to fresh-install the Win 10 OS onto a GPT-partitioned drive, it's necessary that you boot to the Win 10 installation DVD you're using in the UEFI-interface.

With the DVD inserted in your optical drive and the GPT-partitioned disk connected, start the bootup process and access your motherboard's Boot Menu by pressing the appropriate function (F or other) key to display the Boot Menu. (Different motherboards require their own special key to access the boot menu). Usually the appropriate key will be listed at the beginning of the bootup process and you can also check your motherboard's User Manual for the appropriate key to press.)

Just remember to select the UEFI interface/mode from the boot menu. (There might also be a reference to the Windows Boot Manager as well.)

The system should then boot to the Win 10 setup program and you should be able to install the OS onto your GPT-partitioned disk.
 
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