Some software like Works and other MS products will install over an older version and will save settings and documents etc. Others won't, printer and other device drivers are exceptions and must be uninstalled manually unless an update to the same device.
Generally a full uninstall will delete the directories set up by the application, so you should save your special files (including settings, templates and others) elsewhere before uninstalling. Once the uninstall is complete and the new install is complete move these special files back. A prime example of this would be an address book or e-mails if you have to re-install a mail program.
I am wondering about the need to uninstall a program before reinstalling it.
My Works 6.0 recently got corrupted. So I bought a new Works 6.0 CD and installed it without first uninstalling the first installation (because I thought there might be less chance of losing what I had stored in the first program). That seems to have worked fine.
But, when my daughter's Canon printer program messed up and I went to reinstall it, the installation program said to be sure to first uninstall the first installation.
Now, I find that my MusicMatch program has gotten corrupted and I want to reinstall it. But I don't know if I should first uninstall the first installation. My reason for wanting to install over the prior one is the hope that by doing tis maybe I won't lose the songs I previously got from MusicMatch.
Any help out there? Thanks, Jerry