Question: I want to install ubuntu alongside Windows 10 (which is already installed in my pc) in my pc, i was trying to shrink volume of C:\ drive by disk management but my C:\ drive don't have enough space . Will it work if i shrink my D:\ or E:\ drive in stead of C:\?

I also tried using USB drive by downloading unetbootin but found no result.

Please give a detailed explanation if possible.

Answer: 
You can use the utility [gparted within a live USB or CD install to resize your disk](https://i.imgur.com/o9qud7x.png) offline. It should come preinstalled however if it is not you can run 'sudo apt-get install gparted' to install it.

I happen to find the ['Universal USB Installer'](https://www.pendrivelinux.com/universal-usb-installer-easy-as-1-2-3/) the easiest to use on Windows whenever I try to make a bootable USB key.
Yes, shrinking the D or E drive can work. Look at [this video](https://www.youtube.com/watch?v=SOfnvbdWhrs).

For USB bootable OS, do this :

1. Download ISO file of ubuntu (any version)
2. Download Universal USB Installer (UUI) from [here](https://www.pendrivelinux.com/universal-usb-installer-easy-as-1-2-3/)
3. Connect your USB drive and run UUI and follow the process.
4. After 10-20 minutes it will create a bootable USB.
5. Restart your system and boot from the USB drive.
6. Install it and enjoy Ubuntu on your system.