Microsoft has released Secure Boot 2023 certificates to all eligible Windows 11 and Windows 10 PC. Here's how to check if you ...

A crucial Windows security certificate just expired - how to check your PC ...

HP, Dell, ASUS, Lenovo, MSI and Acer have published Secure Boot certificate guides. Here's what each PC manufacturer says you ...

Update Release Date: The Secure Boot 2023 certificate update was deployed by Microsoft on June 24, 2026, aligning with a key expiration date. Secure Boot Function: Secure Boot relies on firmware ...

Most people will never need to think about Secure Boot certificates. They live deep in your PC’s firmware, do their job silently, and have been doing so since 2011 without asking for much in return.