I found that only the installer works properly. the "remove driver" option in app menu creates problems.
I have one SATA hd and one IDE DVD. After "remove driver" the IDE DVD driver was somehow screwed via the registry. The only remedy was a full install/reboot/uninstall routine, else my DVD would be disabled due to driver error (dev not found).
unmarking the drivers in AUTORUNS gives you "blue screen of death" = BSOD.