I had netflix on and when i turned it on it says needs to upgrade

It should be okay to upgrade Netflix. Did it provide you a link to upgrade the player? If you do not have access privileges to install software on the computer you are using, you will likely need to find the computer's administrator to have them update the software.

If you were using a temporary version of the Netflix player, it might require you to upgrade to a "non-demo" version because your demo period expired. Note: when you upgrade, however, it will likely require a paid membership. This is a common sales tactic.

Best wishes,
Jase