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. There is one known issue in this update, in which devices with Windows installations created from custom offline media or a custom ISO image might have Microsoft Edge Legacy removed by this update, but not automatically replaced by the new Microsoft Edge. Over the next few weeks, check for reports about problematic issues, and if all seems well, apply the update. 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 April 2023 Security Updates. This build includes a wide variety of security updates.

Windows 10 home download