The installation information has been edited from appinventor.mit.edu. Please click on the link for information for computer systems and browsers not listed below.
Note: To check the version of your browser, click the setting (for Chrome, click the wrench icon) and check the "About" tab.
Your computer needs to run Java 6 or higher (also known as Java 1.6). You can download Java from www.java.com . Test your Java configuration by performing both of the following tests:
App Inventor will not work on your computer if these tests do not succeed. Don't go on to try to use App Inventor until you've dealt with the issue. If Java does not run properly even after you install the latest version of Java, see the troubleshooting tips at the Java test page
Next you need to install App Inventor Setup for Windows on your computer
The last step is to set up your Android phone
If you see an error message mentioning the "path" problem, it is likely that you did not complete the setup in step 3. Try re-installing the software above, and make sure to complete the installation wizard (the installation requires extra steps after downloading the software).
Click on the Getting Started link to run and create your first App Inventor Program