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Turning unallocated space into an NTFS partition
Partitioning Disk: Maximum Partitions Reached

My hard disc contains unallocated space and I want to format this space but I already use the maximum number of primary partitions.

I use Win7 (partitions: System Reserved,C,D) and Ubuntu(976MB swap and 55.88GB)

I searched on the Internet and I found that I can convert my disk to dynamic disc and then create the new partition, but I am not sure how to do this.

How can I use this unallocated space (from windows) without losing any data?

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marked as duplicate by Canadian Luke, DragonLord, 8088, slhck, Randolph West Jul 19 '12 at 4:23

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

If you don't want to lose any data make a backup before you touch anything. –  Baarn Jul 18 '12 at 22:31
I edited your question, feel free to revert the changes if you don't like them or edit it again yourself. I think this question has been asked before on superuser but I cannot find it. –  Baarn Jul 18 '12 at 22:42
If you want Linux to keep working, then do not convert to a dynamic disc. –  Zoredache Jul 18 '12 at 23:02
See the two posts I linked to –  Canadian Luke Jul 18 '12 at 23:13
@Luke if i extend the last partition to the end of the disk and create NTFS partition ,is this NTFS partition will be available from windows? –  Hesham Abouelsoaod Jul 19 '12 at 15:53