Why do inactive wordpress plug ins show that they need to be updated?

Hello, I have a bunch of wordpress plug ins deactivated because I might later turn them on and it helps to keep track of which plug ins I have used in the passed. However, I am getting update messages for all of my inactive plug ins. This is becoming so much of a pain in the ass (because I can’t tell what I need to update that is actually on). I am thinking of just deleting all the plug ins I have inactive and writing the name of them down in a list. However, this doesn’t really work and causes a lot of problems because a lot of the time I have configured the plug in with a lot of customized options. I guess I have to write all those down too. It totally sucks to have the update number displayed for inactive plug ins. How to I fix this?