Method to repartition your Harddisk without formating it

This post is for those people who are Windows users and want to repartition their Hard disk without formatting it. For those Windows 7 & Vista users can do it in a simpler way by using Disc Management tool.This can be done by trying the following steps.

  Part 1:

This post is for those people who are Windows users and want to repartition their Hard disk without formatting it. For those Windows 7 & Vista users can do it in a simpler way by using Disc Management tool.This can be done by:

For Windows 7 & Vista users:

If you are logged in as an administrator, you can repartition your hard disk by using the Disk Management tool. You can reduce the space of the existing partition or volume to get some disk space, from which you can create a new partition or volume. 
1. Open Computer Management by clicking the Start button .  

2. Clicking Control Panel, click System and Security.

 3. clicking Administrative Tools, and then double-clicking Computer Management.‌

 If you're prompted for an administrator password or confirmation, type the password or  provide confirmation.In the left pane, under Storage, click Disk Management.

4. Right-click the volume you want to shrink, and then click Shrink Volume.

In the Shrink dialog, you have to enter the amount you want to shrink but not the new size. For example, if you want to shrink your 50gb of your partition to 10gb so that it will be 40gb, enter 10000 into the box:

5. Follow the instructions.

Extend a Partition

In the Disk Management screen, just right-click on the partition that you want to shrink, and select “Extend Volume” from the menu.

On this screen, you have to specify the amount that you want to increase the partition.In this case, I’m going to extend it back by 50GB size that it was before.

Note that the extend partition feature only works with contiguous space. 

Link to Part 2: 

http://winuxtips.blogspot.com/2012/01/method-to-repartition-your-harddisk.html