Please download Cameroon Root Certification Authority certificate by clicking here and follow the bellow procedure:
1. Download the CamRootCA certificate: CamRootCA.der;
2. Right-click on this file and click on "Install Certificate";
3. On the Certificate Import Wizart dialog, click "Next";
4.Tick the option "Places all certificates in the following store" and browse;
5. Select "Trusted Root Certification Authorities" and click on "OK" to validate;
6. After validating, click on "Next" and then "Finish";
7. Click on "YES" to complete installation procedure;
8. Certificate has been installed;