I've never had anything create such a bad failure, just been lucky I guess? I decided to install Lubuntu 13.10 along side my Win XP. It is a laptop that isn't use often but still needs Windows for work related items. Last evening I started an install, had my 500 gig external HD attached and the install wanted to create a partition on my external HD. Nope --- don't want that ...cancel install, I'll continue in the morning. Started again this morning, I again choose to install along side of windows, installation continues. As the install moves along I start to notice things seem different from the previous night, I am seeing actions appear that I didn't see the night before, I'm wondering when I will see the request to set a partition size. It never, ever asked but what it did was partition over my windows. Errrr!!!! Ugh!!!!!!!!!!! Yikes and expletives I won't say here. Install gets to the end and says to reboot, so I do. I see the menu to choose Ubuntu but no windows, Grub didn't do its thing. Now I am wondering if I should reinstall. I have a feeling I am screwed. I've done things before with plain ole Ubuntu (dual boot) and never had any issues. I have some things backed up to the hard drive but have probably lost years of files. Instead of choosing to install along side windows I should have hit the radio button for something else. Reading on the internet choosing the something else option is safer and less prone to loosing your windows partition. Hm? I am sure the government could find my lost files.