I'm not sure if I'm just not asking Google properly or what, but I can't come up with a good answer to this problem.
We have MDT 2010 setup and have a Task Sequence for refreshing Windows XP machines. It doesn't seem to happen all the time, but a lot of the time when we start a refresh it goes through the normal motions and when it gets into the first part of Windows XP setup (the blue screen) it stops, telling me a Windows installation already exists at that location and I can press L to continue, erasing everything and using that folder.
I've poured over the unattend file and can't find an option that will just delete the old files and keep going, so I'm at a loss. Any ideas?