Purge Default Layers

When I open AutoCAD MEP 2010 the default 'Drawing1.dwg' has all these layes in it that won't purge. I open CAD, default Drawing1.dwg loads, and I try to PURGE the layers. How do I get these layers out of my drawing and how can I make it so that my default Drawing1.dwg loads with Layer 0 and Defpoints and THATS IT?

I know about LayDel so lets not go there...

Thank you in advance.

are you sure these are unreferenced layers and that you have no blocks defined within Drawing1? AutoCAD Electrical has several layers necessary for its own workings and once these are purged they have to be remade before ACADE will continue. I would have expected MEP to be similar.

AutoCAD opens a template file as default, that has all those layers in it. Go to Options > Files > Template Settings and see what your template is called and where it can be found. If you have done no customizations to your autocad that should be a C:/-location.

Either edit that template file that you have already (make sure that its saved as a DWT) or save a new template that you name yourself.

Under Options you can set which template to open as default.

Awesome. Though it doesn't tell me which one it uses (... > MEP 2010 > enu > Template > __??___)

Hmmm.... Do you know which one is the "typical" one to use? I will take that template, modify it, and save it as my own.

*I just noticed that when I open CAD that the Aecb Model (Global Stb).dwt gains 2 dwl files. I assume that means that this is the one that my CAD is drawing from... correct?

Two steps down in the Options-window you see Default Template File Name for QNew - thats what you use as a default.

DWL is the AutoCAD lock-file that (as far as I remember it) makes it so that other users can only open your drawing as a read-only.