We have 8 systems and purchased Aucad LT 2007 for 5 user licence and 3 user licence in 2006.  Recently I have formated the system due to some problem. I reinstalled the Autocad but I unable to activate the product, it says that "It is already activated". How can fix the problem.
Pls help me.
 

Did you uninstall Autocad before reformatting? Or did you just format over it?Contact Autodesk. They may need to issue you a new activation code.

Thanks,I have formatted without uninstalling AutoCAD LT. 

Yeah, you probably should have uninstalled it first.

Hi all,Recently I have formated the system due to some problem. I reinstalled
the Autocad but I unable to activate the product, it says that "It is
already activated". Thanks for sharing with us.________________________Budget Hotels In kanyakumari | Kanyakumari Budget Accommodation | Kanyakumari Tourism