I needed to do this for work recently and thought I'd share it. Here is a UDF which allows you to write a user specific registry key to ever user profile on the system (whether logged on or off). Includes the "default user" registry, so changes apply to any new users that log on as well. Examples: ; Give everyone a new IE home page (note you don't need HKCU) RegWriteAllUsers("Software\Microsoft\Internet Explorer\Main", "Start Page", "REG_SZ", "http://www.google.com") ; Delete everyone's cus