WARNING: Using Registry Editor incorrectly can cause serious problems that
may require you to reinstall your operating system. Microsoft cannot
guarantee that problems resulting from the incorrect use of Registry
Editor can be solved. Use Registry Editor at your own risk.
For information about how to edit the registry, view the "Changing Keys
And Values" Help topic in Registry Editor (Regedit.exe) or the "Add and
Delete Information in the Registry" and "Edit Registry Data" Help topics
in Regedt32.exe. Note that you should back up the registry before you edit
it. If you are running Windows NT, you should also update your Emergency
Repair Disk (ERD).
To remove a personal certificate from Internet Explorer, use Registry
Editor to open the following registry key:
HKEY_CURRENT_USER\Software\Microsoft\SystemCertificates\My\Certificates
This registry key contains the keys that represent your personal
certificates. To remove a specific personal certificate, delete the
corresponding registry key.