If there are any updates available, follow the onscreen instructions to install them. After opening iTunes, open the Help menu, and then click Check for Updates. If you can open iTunes without issues, then updating the program is quite easy. These three methods should help you update iTunes to the latest version. Hence, updating it is very important, especially if you are encountering serious issues while using it. The traditional desktop version of iTunes carries a lion's share of bugs and glitches.