Where is RUN in Windows Vista?

Windows Vista does not have RUN in Start Menu by default, but you can easily access it by pressing “Windows” + “R” keys simultaneously.

You can also customize the Start Menu by:
Right-click on the task-bar, then select “Properties“.

Click on “Start Menu” tab, then click on “Customize“.

Check “Run command“ and Click “OK”.

Simple isn't it? Try it yourself...