hello,
we have our Certificate authority installed and configured since Windows Server 2003, and now, it's in Windows Server 2012 R2. And its cryptographic algorithms use SHA1. Which is considered as weak encryption.
And all the generated certificates are not accepted for almost all systems (modern webbrowsers, systems...)
We would like to know, if converting to SHA2 (256), would impact the already delivered certificates or not?
Thank you in advance,

