Install a self-signed certificate in Windows

Installing a Self-Signed Certificate as a Trusted Root CA in Windows Vista

1. Connect to your OWA site by going to https://host.domainname.com/exchange
2. Choose "Continue to this website (not recommended)".
3. Click on “Certificate Error” beside the address bar and select view certificates.
4. Once you have the install certificate button available, select "Install Certificate".
5. This will launch the Certificate Import Wizard. Make sure to Choose the option “Place all certificates in the following store” and select browse.
6. Select Trusted Root Certification Authorities and click Ok.
* In some cases you have to check show physical stores, then select “Local Computer” under Trusted Root Certification Authorities.
7. Click Finish on Completing the Certificate Import Wizard