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As I installed Ubuntu 12.04 my hard drive changed file system from ntfs to ext4. How can I change it back to ntfs?

I don't have to save any files on my computer all I need is to change the file system.

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closed as unclear what you're asking by psusi, falconer, Braiam, Avinash Raj, mikewhatever Feb 7 '14 at 6:15

Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question.If this question can be reworded to fit the rules in the help center, please edit the question.

Ubuntu must be installed to a ext4 can't change it to NTFS.if you does then forget Ubuntu. – Avinash Raj Feb 6 '14 at 18:02
Do you mean the partition that Ubuntu is installed on? To the best of my knowledge this can't be done - Ubuntu doesn't support NTFS as a file system (you can mount NTFS partitions, but by the sound of your question this seems to be more about the OS partition, correct?) – Jez W Feb 6 '14 at 18:03
Yes, are you trying to get rid of Ubuntu? – psusi Feb 6 '14 at 18:38
I want to dual boot, windows and ubuntu – user-3.14159265359 Feb 6 '14 at 19:05
You need to show us your current partitioning layer so following instructions you won't mess up. – Braiam Feb 7 '14 at 3:26

If you want to keep Ubuntu and Windows in a dual boot then this isn't really possible. Ubuntu wasn't made to be installed on a NTFS system. Although you can do this it doesn't work well, and you can't switch EXT4 to NTFS without losing any existing installations of Ubuntu.

If you want to erase any existing installations, then continue on through this answer.

Boot some liveMedia. Select "Try Ubuntu".

Open the "Disks" app.

enter image description here

Select the hard drive and partition you want to format.

enter image description here

Click the little cog button, then select "format".

enter image description here

Use a "slow" format and choose "NTFS" as the format type. Give this partition a name.

enter image description here

Click "Format".

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You can't do it within Ubuntu if that is the partition that Ubuntu is installed to. – psusi Feb 6 '14 at 18:37
@psusi Updated my answer. – Seth Feb 6 '14 at 18:45
OP wants to keep a dual boot and so may have to resize the existing partition then create a new NTFS drive. – minerz029 Feb 6 '14 at 21:08
@minerz029 I see that now. I was assuming he knew it would delete Ubuntu. – Seth Feb 6 '14 at 21:11

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