Determine whether you need an activation code

In some cases, you need an activation code to authenticate your software.

You may need an activation code if:

• You’re offline and have a perpetual license for a standalone 2020 (or earlier) product. 

• You have an education license and are offline.

To request an activation code, you must first get a request code. To get one, seeFind request code for manual activation。一旦你有了,使用以下表格再保险quest your activation code. 

Important: Autodesk no longer supports manual offline authentication for 2021 products and later. If you have a perpetual license for a 2021 product or later and want to use it offline, activate your software by going online one time to register. You can then use the software offline. This change doesn't apply to subscription network licenses or previous versions that you already activated offline. You can continue to use them as before.