title: How can i uninstall Spagobi 4.2 and install SpagoBI 5.1
body: <p>i was working with SpagoBI 4.2 and i decided to pass on SpagoBI 5.1 without knowing the process. Now i installed both version 4.2 and 5.1 of SpagoBI and both don't working.</p>
  
  <p>please assist me </p>
  
  <p>Kind regards.</p>