



What IT needs to know: Because this is a security update, it should be applied relatively soon. For details, see Microsoft’s Security Update Guide and March 2023 Security Updates. It also includes a wide variety of security updates. It also fixes a bug in which joining an Active Directory domain failed when you reused an existing computer account. After you install this update, you cannot turn off the changes using the registry key. This build implements phase three of Distributed Component Object Model (DCOM) hardening. There is one known issue in this update, in which devices with Windows installations created from custom offline media or custom ISO image might have Microsoft Edge Legacy removed, but not automatically replaced by the new Microsoft Edge. This build fixes a variety of bugs, including one in which Windows classifies USB printers as multimedia devices even though they are not, and another in which lsass.exe might stop responding when it sends a Lightweight Directory Access Protocol (LDAP) query to a domain controller that has a very large LDAP filter.
