Besides Web pages, VBScript can be used for various automation scenarios in Windows. It is a part of Windows Scripting Host, the automation technology that provides scripting abilities comparable to batch files, but with a wider range of supported features.
VBScript for web pages has become deprecated these days. Microsoft's latest web browser, Edge, doesn't support VBScript at all. This is the main reason why it is disabled in Internet Explorer 11 in Windows 10 build 16237. The ability to disable VBScript was first introduced in Windows 10 Creators Update in April 2017. It was still enabled by default. Now, the defaults have changed.
Users who need VBScript in their web browser environment can enable it in Internet Explorer options.
For this change, Microsoft is expecting to hear your feedback, so leave it via the Feedback Hub app if you are interested. VBScript for the Explorer shell/Windows Scripting Host which is used for automation should be unaffected by this change.