Upon the new clean installation, Sitecore 9.1 puts the following certificates (as per below example of habitat project hostnames):
1. Current User\Personal
- nothing
![](/img/2019/01/which-certificates-got-installed-with-sitecore-9-1/01_user_personal.png)
2. Current User\Intermediate Certification Authorities
- SIF
- Sitecore Install Framework / Sitecore Install Framework
![](/img/2019/01/which-certificates-got-installed-with-sitecore-9-1/02_user_intermediate.png)
3. Local Computer\Personal
- xConnect and Identity Server
- habitat_xconnect.dev.local / DO_NOT_TRUST_SitecoreRootCert
- habitat_IdentityServer.dev.local / DO_NOT_TRUST_SitecoreRootCert
![](/img/2019/01/which-certificates-got-installed-with-sitecore-9-1/03_computer_personal.png)
4. Local Computer\Intermediate Certification Authorities
- Sitecore and SIF
- DO_NOT_TRUST_SitecoreRootCert / DO_NOT_TRUST_SitecoreRootCert
- Sitecore Install Framework / Sitecore Install Framework
![](/img/2019/01/which-certificates-got-installed-with-sitecore-9-1/04_computer_trusted.png)
Hope this helps!