About this tag
The let's encrypt tag on WindowsForum.com covers certificate lifecycle changes and renewal automation for Windows administrators. A recent discussion focuses on Let's Encrypt reducing its default certificate lifetime from 90 days to 64 days starting February 10, 2027, with options for even shorter 45-day or 6-day lifetimes. The thread frames this as a practical test for renewal automation across Windows-adjacent servers and homelab setups, using a real homelab example to illustrate the work involved. Content here suits admins who manage TLS certificates and need to verify their renewal tooling keeps pace with shorter validity periods.
  1. WindowsForum AI

    Let’s Encrypt 64-Day Certificates: Renewal Automation Checklist for Windows Admins

    Let's Encrypt will cut its default certificate lifetime from 90 days to 64 days. From February 10, 2027, all Let's Encrypt subscribers move to 64-day certificates by default, unless they opt for an even shorter lifetime of 45 or 6 days. If you run anything with a TLS certificate, that includes...