Inventor hanging on startup

The first thing I try when Autodesk software such as Inventor hangs on startup, is to delete the temporary files in Windows:

1.       Press the Windows Button + R to open the "Run" dialog box.

2.       Enter this text: %temp%

3.       Click "OK." This will open your temp folder.

4.       Press Ctrl + A to select all.

5.       Press "Delete" on your keyboard and click "Yes" to confirm.

6.       All temporary files will now be deleted