Can CA certificate be imported in trusted people store?

"it does not work" does not help us to identify what the specific issue is - maybe you could use the Improve question button to add that information and any code you have used .. check if this adds any useful information in code https://docs.microsoft.com/en-us/dotnet/api/system.security.cryptography.x509certificates.openflags?redirectedfrom=MSDN&view=netcore-3.1#examples .. btw, look at Hide   Copy CodeHide   Copy Code

X509Store store = new X509Store(StoreName.My);

this would be what you want Hide   Copy CodeHide   Copy Code

X509Store store = new X509Store(StoreName.Root);

https://docs.microsoft.com/en-us/dotnet/api/system.security.cryptography.x509certificates.storename?view=netcore-3.1