How to remove old installation of windows after upgradation

If you have installed Windows 7 and have upgraded from windows XP, I am sure that you are wondering how to remove old installation of windows after upgradation. How to get rid of Windows.old folder. Here is how to remove old installation of windows after upgradation

• Open Disk Cleanup by clicking the Start button . In the search box, type Disk Cleanup, and then, in the list of results, click Disk Cleanup.
• If you're prompted to choose a drive, click the drive you just installed Windows on, and then click OK.
• In the Disk Cleanup dialog box, on the Disk Cleanup tab, click Clean up system files.
• If you're again prompted to choose a drive, click the drive you just installed Windows on, and then click OK.
• Select the Previous Windows installation(s) check box, and any other check boxes for the files you want to delete, and then click OK.
• In the message that appears, click Delete Files

For more you can click here. I hope now you have removed old installation of windows after upgradation