Product serial number displays as 000-00000000 after registration and activation of product. Before you attempt to edit the registry, you should first try launching the product again to see if the problem has been resolved. If the issue persists, you should use the procedure below. To replace the blank serial number with your valid, purchased serial number. Close all applications and log in as an administrator. On the Windows XP Start menu, click Run. If using Windows Vista, type [Windows key] + R. In the Run dialog box, enter REGEDIT . Click OK to open the Windows Registry Editor. In the Registry Editor, select My Computer, and then click File Export to create a backup copy of your registry. Navigate to, and select, the corresponding path for the product in question. Refer to the file attached to this solution for the correct path. Locate and select the SerialNumber key from the Name column. Right-click the SerialNumber key. Click Modify. In the Edit String dialog box, replace the 000-00000000 entry in the Value Data field with the valid product serial number. Click OK. Repeat steps 4-7 for each product. Close the Windows Registry Editor. The next time you launch the corresponding Autodesk product(s), the serial number(s) will be updated. For Inventor-Based Products. Close all applications and log in as an administrator. On the Windows XP Start menu, click Run. If using Windows Vista, type [Windows key] + R. In the Run dialog box, enter REGEDIT . Click OK to open the Windows Registry Editor. In the Registry Editor, select My Computer, and then click File Export to create a backup copy of your registry. Navigate to, and select, the first path for the Inventor product in question. Refer to the file attached to this solution for the correct path. For the first path, perform the following sets of steps. Right-click the SerialNumber key in the Name column. Click Modify. In the Edit String dialog box, replace the 000-00000000 entry in the Value Data field with the valid product serial number. Click OK. Right-click the SerialNumberPrefix key in the Name column. Click Modify. Replace the 000 entry with the first three digits that precede the dash in your valid product serial number. Click OK. Right-click the SerialNumberSuffix key in the Name column. Click Modify. Replace the 00000000 entry with the eight digits that follow the dash in your valid product serial number. Click OK. Navigate to, and select, the second path of the Inventor product listed in the attached file. For the second path, perform the following step. Right-click the key in the Name column. Click Modify. In the Edit String dialog box, replace the 000-00000000 entry with the valid product serial number. Click OK. Navigate to, and select, the third path of the Inventor product (AutoCAD Mechanical) listed in the attached . htm file. For the third path, perform the following step. Right-click the SerialNumber key. Click Modify. In the Edit String dialog box, replace the 000-00000000 entry in the Value Data field with the valid product serial number. Click OK. Repeat steps 5-10 for each Inventor product. Close the Windows Registry Editor. The next time you launch the corresponding Autodesk product(s), the serial number(s) will be updated. WARNING! Problems caused by improperly editing the Windows registry could render your computer operating system unusable. Microsoft has provided a wealth of critical information you need to know about the registry in the Microsoft Knowledge Base at. Use the Microsoft Registry Editor only at your own risk and only after backing up the registry as well as the and files as outlined in the article How to back up and restore the registry in Windows in the Microsoft Knowledge Base. Additional information about the registry is also contained in the Help topics in the Microsoft Registry Editor.
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