Final answer:
To add a certificate to trusted root in Windows 10, access the Microsoft Management Console, add the Certificates snap-in, and import the certificate to the Trusted Root Certification Authorities store using the Certificate Import Wizard.
Step-by-step explanation:
To add a certificate to the trusted root in Windows 10, you need to access the Microsoft Management Console (MMC) and use the Certificate Snap-in. Here is a step by step guide: Press Windows Key + R to open the Run dialog box. Type mmc and press Enter to open Microsoft Management Console. Go to File > Add/Remove Snap-in. Select Certificates and click Add. Choose Computer account and click Next. Select Local computer and click Finish.
Click OK to add the snap-in. Expand the Certificates (Local Computer) tree. Right-click on the Trusted Root Certification Authorities folder. Select All Tasks > Import to start the Certificate Import Wizard. Follow the wizard to browse and select your certificate file. Make sure to place the certificate in the Trusted Root Certification Authorities store. Complete the wizard and your certificate will now be added to the trusted roots. It's important to only add certificates from reliable sources to maintain your computer's security.