Q: iTunes keeps failing after one day of use

Hello Alindsay18,

Thank you for providing the details of when iTunes becomes unresponsive.  I would be concerned too if I had to reinstall iTunes everyday. 

I found an article with steps you can take to isolate and troubleshoot an issue like this:

iTunes for Windows XP: Troubleshooting unexpected quits, freezes, or launch issues

http://support.apple.com/kb/TS1421

Thank you for using Apple Support Communities.

Best,

Sheila M.