Step 2: Copy Music to a Safe Location - Make Back Up
Before you reinstall iTunes, you should copy the iTunes folder containing your iTunes library, playlist etc, to a safe location like an external hard drive or a Flash drive. This is to ensure that your data remains safe from overwriting, deletion, or from unexpected hard drive crash during the iTunes reinstall process.
Follow these steps to copy the iTunes folder to an external storage device:
1. Open the File menu in iTunes, go to Library and click Organize Library.
2. Click Consolidate Files. By clicking this option your iTunes media will be copied to a single folder so that you can copy/move it to your external storage device.
3. Locate the iTunes folder. The default location of this folder is \My Documents\My Music in Windows XP, and \Users\username\My Music\ in Windows Vista and Windows 7. If the iTunes folder isn't in its default location, you can find out where iTunes has put this folder: From the iTunes Preferences window, go to the Advanced tab, where you will find the hard drive location of the iTunes folder.
4. Quit iTunes
5. Copy or move the iTunes directory to the external storage device.
Alternatively, you can backup your files to a disc. Here is how…
1. Insert a blank CD or DVD into your optical drive.Open the File Menu in iTunes and select Library -> Back Up to Disc. Select Back Up Entire iTunes Library and Playlists and then click Back Up. The iTunes will immediately begin burning all your files and folders to the CD/DVD.