KB5046418: Internet Explorer and Internet Explorer mode: Security risk opening HTA files directly from the Download dialog box

Applies To

Windows Server 2012 Windows Server 2012 R2 Windows 10 Windows 10 Education, version 1607 Windows 10 Professional version 1607 Windows 10 Enterprise, version 1607 Windows 10 Enterprise version 1607 Windows 10 Enterprise, version 1809 Windows 10 Professional Education version 1607 Windows 10 Pro Education, version 1607 Windows Server 2016 Windows Server 2019 Windows Server 2022 Windows 10 Home and Pro, version 21H2 Windows 10 Enterprise and Education, version 21H2 Windows 10 IoT Enterprise, version 21H2 Windows 10 Home and Pro, version 22H2 Windows 10 Enterprise Multi-Session, version 22H2 Windows 10 Enterprise and Education, version 22H2 Windows 10 IoT Enterprise, version 22H2 Windows 11 Home and Pro, version 21H2 Windows 11 Enterprise Multi-Session, version 21H2 Windows 11 Enterprise and Education, version 21H2 Windows 11 IoT Enterprise, version 21H2 Windows 11 Home and Pro, version 22H2 Windows 11 Enterprise Multi-Session, version 22H2 Windows 11 Enterprise and Education, version 22H2 Windows 11 IoT Enterprise, version 22H2 Azure Local, version 22H2 Windows 11 Home and Pro, version 23H2 Windows 11 Enterprise and Education, version 23H2 Windows 11 Enterprise Multi-Session, version 23H2 Windows 11 IoT Enterprise, version 23H2

HTML Application (.hta) files can be a security risk when they are opened directly from the Download dialog box in Internet Explorer and Internet Explorer mode in Microsoft Edge.

As a result of this security risk, we have removed the option to open .hta files from the Download dialog box. This change is included in the Windows updates released on or after September 10, 2024.

Remember You can save .hta files by using the Save or Save as options and then manually open them.

Use Save or Save As to save .hta files