Move to Linux from Windows without any data lose.
 

Respected Sir, I have 4 partition in my computer I want move my os Windows to Linux Ubuntu. With out any lose personal data but I want to format my C drive where I want to Install Ubuntu. But my others partition have important. But I have follow may tutorial in youtube and others. Here I need suggestion.
I want to know to type of format C drive...
home and others needs how much space ?
I have 4 gb ram. i3 processor. Here is the partition screenshot link.Screenshot of Partition
Please help me.

It is better to backup your data external.
Can you post the partition layout of your drive.

The naming conventions for Linux systems are different from windows and you will not see a partition referred to as a "C:\ Drive" so the suggestion above to boot your Ubuntu medium, open a terminal and run the command: sudo fdisk -l(Lower Case Letter L in the command) and post the output here would be a good first step.

Your best option is to buy or borrow a 1 TB external drive, back up everything, reformat your drive (you'll likely want to change the filesystem types for your data partitions anyway, which means you need to format them), and then copy your data back from the backup.

If this data is really that critical, you should have at least one backup already, so the above suggestion to buy/borrow a backup drive might not be necessary.

If you don't already have a backup, then you should REALLY re-think how critical this data is to you. What would be your reaction if you came home tonight, turned on your computer, and the drive wasn't recognized by the BIOS and wouldn't mount? If your reaction is "Dang, now I have to RMA the drive and go grab my backup..." that's good. If your reaction is "oh no oh no oh no oh no!!!", then you're doing it wrong.

http://windows.microsoft.com/en-us/w...up-and-restore ?

Most computers since 2006 can boot from USB. You can create full linux installs on USB storage devices (granted that the I/O is slower on USB). No need to touch anything that is windows, outside of getting to UEFI to boot USB first. Less of an issue on legacy gear.

@ linuxkrishnendu

If you want to remove windows completely, all you need to do is install a distro over it. But you still need to backup your data first, including bookmarks from your web browsers. Hard drives are cheap these days. As suicidaleggroll said, buy or borrow.

If you want to keep windows around, You'll have four ways to add linux.

1. Use gparted to shrink the windows filesystem. I believe ubuntu can do this as well, there will be an option to install ubuntu on free space on the window's filesystem. It is still risky! and windows may or may not boot. BACKUP before doing this.. You can not use the other partitions because that is where the recovery image, the drivers and utilities resides.


2. Put ubuntu on a secondary hard drive or on an external storage device.

3. Use ubuntu in a virtual machine.

4. Wubi install of ubuntu. Ubuntu will be installed like a windows application.