To prevent NTLM Relay Attacks on networks with NTLM enabled, domain administrators must ensure that services that permit NTLM authentication make use of protections such as Extended Protection for Authentication (EPA) or signing features such as SMB signing.

Learn more about how Xbox cloud gaming works on iOS mobile devices.

Signing certificate To create a digital signature, you need a signing certificate, which proves identity. When you send a digitally-signed macro or document, you also send your certificate and public key.

To digitally sign an Office document, you must have a current (not expired) digital certificate. Digital certificates are typically issued by a certificate authority (CA), which is a trusted third-party entity that issues digital certificates for use by other parties.

With personalized recommendations enabled, you can find suggestions for offers that are tailored to your interests in the Microsoft Store on Xbox or PC. This includes the Xbox app or your console Home screen.

To avoid disruption, we recommend reviewing the guidance and taking action to update certificates in advance. For details and preparation steps, see Windows Secure Boot certificate expiration and CA updates. This security update includes fixes and quality improvements that were a part of the following update:

Learn what to do if your username and password have stopped working. If you sign in to your account while traveling or if you install a new app that signs in with your account, you may get an alert. We just need you to provide a security code so we know it was you, and that your account is safe.

Learn about the latest feature updates and bug fixes for the OneDrive sync app across all devices.

To digitally sign an Office document, you must have a current (not expired) digital certificate. Digital certificates are typically issued by a certificate authority (CA), which is a trusted third-party entity that issues digital certificates for use by other parties.

All versions of Windows 11 natively support Trusted Signing for user mode PE files. Support for Trusted Signing was made available in other client and server products starting with the releases listed below.