That fixed my problem. I haven't rebooted my computer yet to see if there's no login needed, but for the time being I can now access all my media. It took about an hour since I had to enter all the new paths. I don't think I had to add "kodi" to "share with" on my PC since I already had "everyone" but I did it anyway. Kodi asked for "server name" instead of address. That confused me, but I added 192.168.x.x and it worked. Someone needs to post a complete step-by-step procedure on the forums so it can help others.
Thanks everyone - especially CypherZ