KB5034121

• This update addresses security issues for your Windows operating system.     

• This update addresses an issue that affects the ActiveX scroll bar. It does not work in IE mode.

• This update addresses an issue that causes your device to shut down after 60 seconds. This occurs when you use a smart card to authenticate on a remote system.

• This update includes quarterly changes to the Windows Kernel Vulnerable Driver Blocklist file, DriverSiPolicy.p7b. It adds to the list of drivers that are at risk for Bring Your Own Vulnerable Driver (BYOVD) attacks.

• This update addresses an issue that affects the display of a smart card icon. The icon does not appear when you sign in. This occurs when there are multiple certificates on the smart card.

• This update addresses a known issue that affects BitLocker data-only encryption. A mobile device management (MDM) service, such as Microsoft Intune, might not get the right data. This occurs when you use the FixedDrivesEncryptionType or SystemDrivesEncryptionType policy settings in the BitLocker configuration service provider (CSP) node.