When installing Inventor on an English operating system, we recommend that only English characters be included in the installation or deployment path.If you download the installation files to a local folder with a name that contains non-English characters, ensure that the language in Regional Settings is consistent with the language name of the local folder.If the installer prevents you from installing one or more products, pause the cursor over the red 'prohibited' circle beside the product name to get more information.Close all Autodesk applications before installation, maintenance, or uninstallation of the software.For more information, and access to this fix and related Microsoft downloads, see Autodesk Technical Solution 15492718. This fix ensures that Autodesk receives the correct data from Inventor error reports. If you are using Windows 7 on a 64-bit system, please verify that you have the Microsoft fix for user mode callback exceptions KB976038.If you have Autodesk Inventor 2013 installed on the same computer, it is essential that you install Update 1 for Inventor 2013 SP1.1 to correct issues with running Autodesk Inventor 2013 with. Reboot your system after all security updates, and so on, are installed. Please update your operating system before you install Autodesk Inventor 2014.