Using the public key found in the local store, Windows attempts to decrypt the digital signature on the server's certificate.
certutil -verify endentity.cer
When you download a Windows Update or run a Microsoft-signed application, the system checks the file's digital signature. It traces that signature back through intermediate links until it reaches the 2011 Root. If the chain is intact, the software is deemed safe and authentic. How the 2011 Certificate Works microsoft root certificate authority 2011cer work
If you’ve ever dug into the (certlm.msc or certmgr.msc), browsed through the Trusted Root Certification Authorities store, and stumbled upon an entry named “Microsoft Root Certificate Authority 2011” — you may have wondered: What is this? What does “2011cer work” mean? And how does it actually function? Using the public key found in the local
⚠️ This is not the same as the older “Microsoft Root Authority” (issued 1997) or the “Microsoft Root Certificate Authority 2010” (which was actually an older SHA-1 root). The 2011 version is SHA-256 based. If the chain is intact, the software is