When you try to start the product, it hangs at either the “Checking License” or “Loading” step.Remove the following licensing (trusted storage) files (they are in different locations, depending on your operating system). Here are the most common symptoms of licensing problems: Skip this step if you don’t have licensing issues. Remove licensing storage files only if you are having licensing problems.It checks for corrupt registry keys and other issues that can prevent installation. For Windows products, download, install, and run the Microsoft Program Install and Uninstall Troubleshooter (formerly known as Microsoft Fix It). Check for corrupt Windows registry keys and other internal problems.If there is no Remove tool for your product, move the application file to the trash and then remove any residual files (see step 4 below). For Mac applications, use the Remove tool from Finder > Applications > Product Name.Uninstall peripheral programs (from smallest to largest) that were installed with the product before you uninstall the product. For Windows products, go to the application list in the Uninstall control panel.Uninstall the previous version of your Autodesk software.To display the Run box, click START in Windows XP or 7 right-click START in Windows 8 or 10.

Go to the Windows TEMP folder by entering %TEMP% in the Windows Run box and delete all the files in that folder.

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