please Guid me through setting up my new hard disk. Its a new 1TB HDD I am first installing windows 10 on it. Would it be better to choose GPT or MBR as afterwards I would be installing Linux In the same HDD.

Also should I install windows 10 leaving the first half of the Hard disk unallocated for Linux would it be more appropriate,?

Whilst I tend to use mbr , (which I am used to), if setting up (less than 500G) disks for myself, I think GPT is better for larger disks.

(I have no idea about using MS Windows.)

How should I partition the HDD?
Should I create windows partition on the left most side or should I leave a enough space on the begging of the HDD For installing Linux later.
also can i install grub other boot loader before installing windows do to avoid windows Boot loader, i prefer grub or Linux based Boot Loaders.

first you need to install windows and you need to leave enough space for linux. But actually it depends on you (how much do you want to use for this and that).
The location is irrelevant (leftmost side ???).
I would suggest you to create at least 3 partitions, one for windows, one for linux and one for your data and this one will/may be available both from linux and windows.

It's definitely simpler if you install windows first. While doing that, just leave unallocated space on the drive on which to install Linux. You neglected to mention which 'Linux' you are planning to use and since there are well over 500 different ones, it makes it difficult for anyone here to be specific. The first thing you need to decide is whether to use an MBR or EFI install as the process will be different. The first link below generally describes a UEFI dual boot, pay particular attention to the General Principles section, especially if you are not using one of the Ubuntus.

https://help.ubuntu.com/community/UEFI

IIRC windows 10 requires a GPT partition; it will refuse to install on an MBR partition. So if you plan on installing windows 10, you will have to use GPT.

... AND ... this makes things simpler - you don't have to worry about the technicalities of initial partitioning - Windows 10 will do what it does ;-) ... (as mentioned above). If one DID have to choose between MBR and GPT however, I would go with GPT since MBR is slowly being deprecated (... I am obviously assuming that the computer on which you will be using this new disk supports GPT ... anything remotely recent should).

Afterwards, decide how much space you want for Linux, use the Windows Disk Management Utility to shrink your main W10 partition accordingly (it may limit the shrinkage ...), and then install your Linux distro in the unpartitioned space (you may choose to create a partition and a file system there beforehand if you like - unnecessary but some folks prefer doing things this way - using something like a Live GParted ISO). I tend not to create multiple Linux partitions for /, /boot and /home ... but that's a question of preference. You may want to create a distinct Linux Swap partition, however (again - depends both on your hardware limitations and personal preference - read up on swap for guidance).

Cheers and let us know if anything.

vinay45,

Definitely GPT.

Here is a detailed guide:
http://www.dedoimedo.com/computers/d...-8-ubuntu.html

Just let Windows do whatever it wants/needs on install. Once you're up, use the Windows disk manager to shrink the drive appropriately, and then install Linux in the free space.

I had no problem installing Win10_1511_1_English_x64 on an MBR partitioned drive with the Custom install option. Of course, it overwrote the Grub code in the MBR but that was a simple fix. My understanding is that with windows on a GPT drive, you need UEFI. Since you don't have anything on the drive, using EFI/GPT is probably the best. Just make sure that you install whichever Linux you choose EFI also or you will have problems.