How do I restore System Roots Certificates. They were all accidentally deleted

Someone was working on my wife's mac, and they for some inexplicable reason deleted all of the certificates in the System Roots keychain. I can't import them from my mac, because I can't import to the System Roots keychain.

Those certificates are issued by Apple peroidically with Software Updates, but I read a way to update them more frequently.
Hit your Keychain Access Preferences,
Click Certificates
OSCP: Best Attempt
CRL: Best Attempt
Priority: OSCP
This might work, it will slightly reduce the speed of Secure Socket Layer (SSL) sites as it verifies each certificate in real time instead of from a file.
If these setting are already set, then you know what happened.
Try to visit a certain site that requires a certificate and see if everything works.

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How do I restore System Roots Certificates. They were all accidentally deleted

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