Can't reproduce, here the button is simply turned grey, do you see anything in the screen shot that is not there in your case?
** Attachment added: "e.png" https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/2068805/+attachment/5824855/+files/e.png -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2068805 Title: "Install Now" button disappears for good if all packages unselected To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/2068805/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
