Error message, this copy of iTunes is corrupt or not installed correctly.

If i install iTunes again, will i lose my library?

Hello there, Naiichbey.
The following Knowledge Base article speaks to how-to reinstall iTunes:
Removing and reinstalling iTunes, QuickTime, and other software components for Windows Vista or Windows 7
http://support.apple.com/kb/HT1923
Although you may or may not be working in Windows, the part I'd want to point out is the following information found in this document:
Notes:
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.
These steps may take a significant amount of time to complete, depending on your system.
Thanks for reaching out to Apple Support Communities.
Cheers,
Pedro D.

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    Thanks for using Apple Support Communities.
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    Message was edited by: smm03011
    Message was edited by: smm03011

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