signature couldn't add attachment

when sending an email that has a signature with picture (logo in my case), I get an error message “couldn’t add attachment”. The reason for this is because I re-arranged my logo location in the directory structure on my windows computer. 

Question: given that I operate em client on two different computers and that I will most likely move the logo location many times in the future, is there a way for emclient to save the logo in a local directory? Such as a localroaming folders so that if I ever move the logo’s location on my computer I don’t have to delete the picture from signature and re-attach it? It gets messy and tedious to do this on all the computer stations.