1. You can begin the procedure of installing SI-TRUST Root certificate by clicking on Activate the certificate.
2. When browser prompts what do do with the file, select Open.
3. When a security warning pops up, click on Allow and then Open.
4. A box opens with data about the SI-TRUST Root certificate. Click on Install certificate.
4. When the certificate Import Wizards starts, select Current user and click on Next.
5. Select Place all certificates in the following store and for the location: Trusted Root Certification Authorities. Confirm your choice by clicking on Next.
6. In the next window check your options and click on Finish.
7. By clicking on Finish and the procedure is finished.