You would not lose any media from your iTunes library. It only uninstalls the software, when you install the software again the library will be there again. The following articles will assist with removing iTunes depending on what version of Windows you have.
- iTunes Store purchases or songs imported from CDs are saved in your My Music folder by default and are not deleted by removing iTunes. While it is highly unlikely that you will lose any contents of your iTunes Library when following these steps, it is always a good idea to ensure that your iTunes library is backed up. If you're unsure how to backup, see iTunes: Back up your iTunes library by copying to an external hard drive.
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