I receive a "Drawing file is not valid" message on AutoCAD 2004.

Question

I have serious troubles with my AutoCAD 2004. I receive a "Drawing file is not valid" message from every file I'm trying to open. I can't recover it using the recover option from the File drawing utility. The drawing is on my hard drive. Can you help?

Answer 1

Firstly, in order to fix the issue, I suggest you uninstall the software using its uninstaller or Add or Remove Programs feature and then install it again. After that, try to open your files. If you can't, apply the solutions from Autodesk Support page.