Trust a self-signed certificate
- Last UpdatedFeb 21, 2025
- 2 minute read
If the AVEVA Historian is configured with a self-signed certificate for TLS encryption, the certificate needs to be trusted on all client machines to avoid warning messages while using AVEVA Historian Client Web. To accomplish this, install the certificate into the trusted root certificate store on each client machine.
To install a self-signed certificate into the trusted root certificate store:
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Locate and open the certificate file in Windows Explorer. The Certificate dialog displays:

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Select Install Certificate.... The Certificate Import Wizard displays:

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Select Current User to install the certificate for only the current user, or Local Machine to install the certificate for all users on this system.
Note: The Local Machine option requires administrative access to the system. If you do not have administrative access, select Current User.
Click Next. The Certificate Store dialog displays:

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Select Place all certificates in the following store. Click Browse... and select Trusted Root Certification Authorities as the Certificate store.
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Click Next. The Completing the Certificate Import Wizard dialog displays:

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Click Finish to complete the Certificate Import Wizard. A security warning displays:

Click Yes to acknowledge the warning. The certificate is now trusted on your machine.