Steps :
backup or reastore wizard : Click : Start/accessoires/system tools/backup.
1
Backup anything you want to keep.
- See this guide for more details on how to backup data.
2
Insert your Windows XP installation disc.
- If you can't find your disc, you can download an ISO of the Windows installation disc and burn it to a blank DVD. This is legal if you own Windows.
3
Set your computer to boot from the disc drive.
- The setup key is usually F2, F10, or Delete.
- You can change the boot order from the Boot or Boot Order menu. Make sure that the optical drive is set as the first boot device.
- See this guide for more details on opening your BIOS and changing the boot order.
4
Start the installer.
- The setup program may take a few minutes to load.
- Once the setup program finishes loading, press Enter to get started.
5
Agree to the license agreement.
6
Delete the Windows partition.
- This will delete all of the data on this partition, so make sure you have everything you want saved first.
7
Format the partition.
- You will need to specify the size of the partition, the drive letter you want to assign, and the file system format.
- In nearly all cases, you'll want to choose NTFS as the file-system.
- Avoid choosing a quick format, as this will not fix any errors you might be experiencing with the drive.
8
Install your new operating system:
- Install Windows XP
- Install Windows 7
- Install Windows 8
- Install Linux