How To: Repartition Your Hard Drive For Free Without Formatting or Losing Data

Partitioning your hard drive has never been easier. Free options, including the Windows install disk, make this once monumental task a fairly simple two-click experience that many of us don’t spend nearly enough time thinking about when we first install our OS’s. It can sometimes be difficult to anticipate your storage needs up front, and many users just assume they are stuck with decisions they made long ago.
A typical user could have many reasons for breaking up a hard drive into multiple volumes, but partitioning your drive after installing an OS is typically a destructive proposition -- one that usually involves backing up your data, formatting, and starting clean. Commercial solutions such as Norton Partition Magic has existed for years and allows you to preserve your data while resizing volumes, but what if you’re working on a limited budget (or completely without one)? That’s where GParted comes into play. This free and open source disk partitioning tool was designed for Linux, but luckily for us Windows users, it comes bundled in a live CD or USB version called Parted Magic which takes care of the Linux requirement.
In this guide we will look at how to use the interface to resize, delete, or create new partitions, all without losing your data or starting over. This will come in handy if you made your Windows partition too large or too small, or if you’re happy with Windows XP, but want to give Vista a spin. Backups are still heavily advised, but with our help, and a bit of luck, you won’t need them. Read on!
What you'll Need:
* A PC With At Least 1 Disk Drive and 300 Megs Of RAM
* A Backup of Your Data (Just a Precaution!)
* 30 Minutes For Each 100 GB of Hard Drive Space Resized (Estimate)
AND
Parted Magic CD ISO
Free, Mirror #1 , Mirror #2, Mirror #3
ISO Burning Software
Free, InfraRecorder
OR
Parted Magic USB
Free, Mirror #1 , Mirror #2, Mirror #3
1. Use Your ISO Burning Software to Create a Bootable CD or USB Thumb Drive

To begin, we must convert our newly acquired iso file to a bootable CD. You can use either your existing CD burning software, or a free alternative such as InfraRecorder. Once this is completed the CD should be moved to the bootable optical drive on your PC. For the USB drive version simply unpack and copy the files over to your USB thumb drive. Make sure you have a backup of your important data and restart your machine.
Having trouble getting your system to boot from the CD/DVD or USB drive? Read below. Otherwise, skip to step 2.
Some computers are not set up to boot from the CD/DVD drive or USB. If your system fails to boot into the Parted Magic options menu (shown below) then there may be a few configuration issues you will need to review. You either need to invoke the boot selection menu (the F-key to access this should be shown at the top or bottom of your screen immediately after power up). A trip to the BIOS will otherwise be required to make a permanent change. Once you enter the BIOS, look for an option called “boot order”. In most cases you use the + or – key to advance the device of your choice up or down the priority list. Upon completion of the boot order change, make your way over to save option and reboot.
2. Boot Into Parted Magic
Select option #1 – Default settings (Runs from RAM / Ejects CD). After selecting this option, you will see the OS copy itself into your system memory and boot into the front end interface. Once it has fully finished booting, the CD tray will eject the disk and is now fully operating from RAM.
3. Use The Built in Partition Imager to Backup Your Files (Optional)
Click the Icon of the wrench and hammer and select Image Partition
The default Partition Imager interface is a bit clunky if you're accustomed to a sleek GUI. If you own an alternative solution such as one of the free suites offered by most hard drive manufacturers, feel free to use that instead. To navigate through the interface, use the arrow keys to select different options and the TAB key to move between fields. This will allow you to create a sector by sector clone of your volumes just in case something goes wrong with the partition. Keep in mind that you’ll want to save the images to a hard drive that you aren’t resizing. A USB hard drive does the trick quite nicely if you have one that's big enough. We prefer this method because we can backup my data and physically unplug the device, thereby removing it from harm’s way.