I am a new linux user. i have dual booted windows 10 and linux. Now i want to remove windows completely. so, can anyone tell me how can i intigrate the ntfs partitions to linux system? plz as i am a newbie i need some details. Thanks.

Are You trying to save the ntfs partitions? or just copy a couple of files?

The first thing you need to do is learn a little about partitions and storage.
Linux is an Operting System as Is Windows.
NTFS is a storage system as are EXT1 to EXT4 and The various FATs.
While it is true that different OSs tend to use different File operating systems By DEFAULT, most are perfectly capable of using and certainly reading and writing the others with the correct drivers. It also depends on what sort of data you are storing as the different file systems strengths and weaknesses vary with the type of data.

Is windows 10 UEFI/GPT? Which Linux are you using or do you want to use? If you are going to be using Linux exclusively, you won't need any ntfs partitioned filesystems unless you plan to share data with other windows systems. If you do have data you want to keep on ntfs partitions, just leave them alone. If you are not familiar with partitioning you will need to post specific information and ask more specifically for a solution or as suggested, do some reading on partitioning. You could start with the GParted Manual at the link below.

http://gparted.org/display-doc.php%3Fname%3Dhelp-manual

I found this. Seems informative and a respected source, to boot.
The ultimate guide to Linux for Windows users

Hi.

Could do a fresh install with GNU\Linux and use the whole drive?

Have fun!

I recommend: you install a linux to an usb stick (a Debian for example; not the live).
You save what you had on your PC (important data) on another usb stick.
You boot from the linux usb and install according the install menue the entire disk with "automatic" (not manual) install.
You will have a fresh-clean-proper-gut smelling linux install.

You can integrate NTFS partitions and keep the data on them using /etc/fstab or you can format to ext4 and do the same thing but lose all the data on them. The choice is yours

... and given NTFS/MSWin and ext4/Linux have different ideas of 'owners/perms', I would backup data from ntfs and re-format partitions as ext4 (or whatever) and re-load data.
No point in dealing with ntfs differences if you don't have to.

We're not entirely sure what you wish to achieve.

If you are looking to get rid of your Windows partition please please back it up first
The boot from a Live USB and start up GParted
You've now got a choice.
If you want to use that space as an extra partition/drive then simply format it to a Linux format (Ext4 is a good reliable and simple choice). then reboot into your real Linux, you will need to edit your FSTAB file for the drive, there's plenty of documentation for this

If you want Linux to take over all the space on the drive, delete your Windows partition, apply the changes then expand your root partition to take up the space, should not really take all that long. You will probably want to update your bootloader (grub?) once you reboot into your normal Linux to remove reference to Windows but it should boot fine with no changes