Você precisa utilizar um MMC na máquina local:
Managing trusted root certificates for a local computer
- Click
Start
, clickStart Search
, typemmc
, and then pressEnter
.- On the
File
menu, clickAdd/Remove Snap-in
.- Under
Available snap-ins
, clickLocal Group Policy Object Editor
,clickAdd
, select the computer whose local Group Policy object (GPO) you want to edit, and then clickFinish
.- If you have no more snap-ins to add to the console, click
OK
.- In the console tree, go to
Local Computer Policy
,Computer Configuration
,Windows Settings
,Security Settings
, and then clickPublic Key Policies
.- Double-click
Certificate Path Validation Settings
,and then click theStores
tab.- Select the
Define these policy settings
check box.- Under
Per user certificate stores
, clear theAllow user trusted root CAs to be used to validate certificates
andAllow users to trust peer trust certificates
check boxes.- Under
Root certificate stores
, select the root CAs that the client computers can trust, and then clickOK
to apply the new settings.Adding certificates to the Trusted Root Certification Authorities store for a local computer
- Click
Start
, clickStart Search
, typemmc
, and then pressEnter
.- On the
File
menu, clickAdd/Remove Snap-in
.- Under
Available snap-ins
, clickCertificates
,and then clickAdd
.- Under
This snap-in will always manage certificates for
, clickComputer account
, and then clickNext
.- Click
Local computer
, and clickFinish
.- If you have no more snap-ins to add to the console, click
OK
.- In the console tree, double-click
Certificates
.- Right-click the
Trusted Root Certification Authorities
store.- Click
Import
to import the certificates and follow the steps in the Certificate Import Wizard.
(Fonte: Gerenciar Certificados Raiz Confiáveis - Windows 7 e Windows Server 2008 R2 )