It is important to know that it is not recommended to uninstall TDM Portal and then install the latest release. This is due to the OrientDB database is ALSO uninstalled and then a new one is laid down. If your OrientDB gets replaced, all artifacts created in the portal and stored in the OrientDB are lost and have to be recreated.
The Solution is to simply upgrade the TDM Portal and you will avoid unnecessary work in the recreation of artifacts created for use in the previous release of TDM Portal.
If you MUST uninstall TDM Portal, please remember to backup the OrientDB prior to uninstall to preserve your work artifacts.