Delete 2 folder berikut:
- c:\users\username\appdata\roaming\autodesk\autocad2011
- c:\users\username\appdata\local\autodesk\autocad2011
Kemudian delete key registry berikut:
HKCU\software\autodesk\autocad\Rxxx\acadxxx
Lalu jalankan kembali Autocad nya
Semoga bermanfaat