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I bought a new laptop, a HP Pavilion 15n-233tu.
It had an Ubuntu 12.04 OS. When I was installing windows 7 it showed 2 partitions. One was labeled hp_tools so I left that one untouched, the other one I formatted and installed Windows 7 on.

But I can't find drivers for it, so I used system restore and installed Ubuntu again.

I also tried installing Windows 8, but that gives an error:

windows cannot be installed because partition is not in NTFS type

So right now I am using Ubuntu and I used a disk utility to change its format, but it gives some mounted error. How can I solve this?

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Which error did you get? –  Rufus_12 Jul 4 '14 at 9:05
Okay, could you please make an "edit:" part in your question and put in there more details what your tried, what went wrong, –  Ruslan Gerasimov Jul 4 '14 at 9:15
You have to first unmount partition (if mounted) which you want to formate to other type –  Pandya Jul 4 '14 at 9:34

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