In case of a crash recovery, restore the PPM installation by reinstalling it with the same options you used for the original installation. Please note that the required third-party software (e.g., JRE for PPM or Tomcat for Performance Dashboard) must already be installed. Then you need to recreate all clients with the original settings using CTK. If required, restore the databases of all PPM clients. After this, you can copy the archived files back to their original location as described in the chapter on Archiving, just in reverse order, and start the PPM system.