Windows seems to be saving my credentials for a variety of applications (terminal servers, etc) and I'd like to purge this data.

How can I backup and purge this data?

The utility to delete cached credentials is hard to find.  It stores both certificate data and also user passwords.

Open a command prompt, or enter the following in the run command 

 rundll32.exe keymgr.dll,KRShowKeyMgr




Windows 7 makes this easier by creating an icon in the control panel called "Credential manager"


