AutoCAD 2010/2011/2012 DWG Format

[#1]

Try resetting AutoCAD LT to defaults. Click Start > All Programs > Autodesk > AutoCAD LT 2012 > Reset Settings To Default.

[#2]

I reset the defaults, and I actually had to copy and paste a number of files from the AutoCAD CD onto my C drive. 

I can no longer remove/repair/reinstall the software.  It won't let me do any of those actions.

When I try to start the program, the error message is: "Customzation File load failed.  File not found: acadlt."  I click OK and the program closes.

[#3]

It sounds like you need a clean reinstall at this point. It might be best to post a new thread over on the installation forums, but here are the instructions:

http://usa.autodesk.com/getdoc/id=TS45252

You might try a third-party uninstall program first, such as the Revo Uninstaller. Here is their download page:

http://www.revouninstaller.com/revo_uninstaller_free_download.html

Let us know how it works out.

[#4]

My IT department ended up re-imaging my computer.  After that point, I was able to install AutoCAD and use it without a problem.

Thanks for all of the help.

[#5]

Glad to hear that you got things working again!

[#6]

Try this

find any acad.lsp on your computer anywhere and delete. Try again to startup autocad. 

[#7]

AutoCAD 2012 hangs on startup for me, on an intermittent basis. One of the regular fixes for me is to go to task manager - services, and turn off the print spooler till it starts. Another one is to clear the temp folder. Obviously I'd rather fix the problem for good, but it does the trick for me.

Cheers