The word "change" has no positive/negative connotation. You can't really ask why people like/dislike change because it offers nothing and people just end up making some association that you probably didn't intend with your question.
One time at work they decided to stop allowing people their own desktop background and we all had to use the same tofu-corporate-drone-nonsense, that was a pretty pointless change that did nothing but hurt moral. Why do you want to hurt company moral??
Explain the change to your employees form start to finish (i.e. we need to add this new software feature which helps our customer perform X task, which shows our dedication to customer service, which may lead to X contract, which may lead to greater profits, which may lead to profit sharing, or a raises, or free hand jobs, or whatever).