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Delete MIT Personal Certificates in Internet Explorer Windows Vista or Windows 7

WARNING: If you have used S/MIME for email encryption, you should export certificates, in order to retain a backup copy, before deleting them from the browser.
How can I tell if I've used S/MIME for email encryption?.

  1. In Internet Explorer, follow the menu path: Tools > Internet Options.
    Tools menu

  2. In the Internet Options window, select the Content tab.
    Internet Options Window

  3. Click Certificates.
    Content Tab

  4. Select the Personal tab.
    Select any duplicate or expired certificates and click Remove.
    Certificates Window

  5. When prompted to confirm the deletion, click Yes.

IS&T Contributions

Documentation and information provided by IS&T staff members

Last Modified:

December 28, 2015

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