Step 1Open program Nexus Personal.
Step 2Double click on Eletronic ID.
Step 3In a newly open window double click on Digital Signature or on Digital Signiture-2, if you have had renew digital certificate.
Step 4After successfully installing the root certificate, you will see the purpose of your digital certificate in the window below. If error accured in proccess of instalation the following window below you will see: Windows does not have enough informations about this certificate.