Export a Certificate as a .REG

For the most part, installing certificates on Windows is no easy task for an end-user. A combination of mmc and trying to put the cert in the right store is a much, much longer process than is needed. This post should show you how to export a certificate from the Trusted Root Certification Authorities store as a .reg file that you can distribute to end-users. You could also use it as part of a batch file or VBScript to silently import the certificate.

Click Start | Run and enter mmc. Press OK.

Click File | Add/Remove Snap-In and press the Add button.

Choose Certificates and press Add.

01

Choose Computer Account and press Next.

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Leave Local Computer selected and press Finish.

Press Close and OK.

Expand the Certificates\Trusted Root Certification Authorities folder and look for the [CA Name] certificate. It may be listed twice. Double-click to open the properties.

03

Click the Details tab. Scroll to the bottom and examine the Thumbprint. Take note of the first few characters.

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Click Start | Run and enter regedit. Press OK.

Expand HKLM\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates. Look for a key name starting with the same characters as the thumbprint. The certificate data is stored in the blob value.

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Right-click the key name and choose Export.

Save the .reg file some place safe.

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You can also use this method for some of the other certificate stores. The other useful store I use frequently is the Personal store. Just replace the ROOT in that registry path with MY to find the certificates there.