Hi! I've searched the forums for help regarding this, but I couldn't find an answer to satisfy me. I've installed Ubuntu 9.04 for simulation and preparation purposes. I've done my thing, so I won't be using Ubuntu anytime soon. Now I'd like to remove the partition which was created using Boot Camp, as I do need the extra space. But when I try running the Boot Camp Assistant utility, I get the following error message: The startup disk must be formatted as a single Mac OS Extended (Journaled) volume or already partitioned by Boot Camp Assisstant for installing Windows If I go to Disk Utility, I can only find ERASE. But this only formats the partition, without removing it, or allocating the space to the OS X partition. The same goes for VirtualBox from Sun. Do the *.vdi files disappear after I delete the created instance, or do I have to manually remove them, as they still occupy the space I allocated at setup? After deleting the virtual Ubuntu, I could have still used Ubuntu.vdi when trying to install Windows 7. How do I remove every OS not related to OS X? Also, please don't point me to paid software. I only do this once a year at the utmost, so I can't afford spending $30 on such a program. Thanks in advance!