When I launch Eclipse it starts with one of the workspaces I created and selected \"don\'t ask again\" (standardly, Eclipse asks about which workspace to start with during the s
I was facing an issue with Spring Tool Suite 4. The workspace used to give an error and I wasn't able to select other workspace also. With the help of some answers already given, I could locate the configuration in $ECLIPSE_HOME\sts-4.7.1.RELEASE\configuration.settings\org.eclipse.epp.mpc.ui.prefs
I removed RECENT_WORKSPACES property (after you try to restart, it adds default entry again) and changed
SHOW_WORKSPACE_SELECTION_DIALOG=true
STS started showing workspace selection dialog again.