Microsoft Root Certificate 2011 Now

Understanding the Microsoft Root Certificate 2011: Legacy, Expiration, and Impact

Security / PKI Introduction The Microsoft Root Certificate 2011 (also known as the Microsoft Root Certificate Authority 2011 ) has been a cornerstone of the Windows ecosystem’s Public Key Infrastructure (PKI) for over a decade. It was introduced to replace the older 2010 roots and to bolster trust for Windows components, drivers, and software. microsoft root certificate 2011

Verify that no critical system still trusts the 2011 root. Need to check your current trusted roots? Run certlm.msc → Trusted Root Certification Authorities → Look for “Microsoft Root Certificate Authority 2011”. If present and dated before 2024, its status should show “This certificate is revoked or expired.” microsoft root certificate 2011

April 14, 2026