Microsoft Root Certificate Authority 2011cer Work -

certutil -f -repairstore root

openssl x509 -in microsoft-root-2011.cer -noout -fingerprint -sha256

If the machine has internet access, simply trigger a Windows Update or run a software installer that requires it; Windows will typically pull down the required root certificate silently in the background. microsoft root certificate authority 2011cer work

Or via PowerShell:

Understanding the Microsoft Root Certificate Authority 2011: Role, Trust Hierarchy, and Cryptographic Validity The “cer” file is simply a representation of

The root certificate signs intermediate certificates, such as the Microsoft Code Signing PCA 2011 or Microsoft Windows Production PCA 2011 .

To ensure this root certificate works correctly on your systems: microsoft root certificate authority 2011cer work

The is a silent but critical component of modern Windows security. The “cer” file is simply a representation of that trust anchor, and its “work” consists of validating nearly every Microsoft-signed software component, driver, and TLS connection on your PC.

As an end user or admin, you should delete or distrust this root unless you're troubleshooting a specific compromise (extremely rare).