Download key generator for Autodesk AutoCAD 2013 Service Pack 1.1 ISZ
You can apply this update to AutoCAD 2013 (with or without SP1) running on all supported operating systems and languages. Consult the readme file for installation instructions and more details on the primary issues resolved by this update. Be sure to install the correct update (32-bit or 64-bit) for your software and operating system.
This Service Pack can be applied to AutoCAD 2013 installed as a standalone application as well as AutoCAD 2013 installed from the following Autodesk Design Suites.
NOTE: You can also use Autodesk Exchange to install the Live Update Maintenance Patches, which will automatically show the correct Service Pack for your product.