Microsoft released Patch Tuesday updates for Windows 11, specifically KB5094126 and KB5093998, along with dynamic updates KB5094149, KB5095971, and KB5094156. Two issues have been acknowledged: malfunctioning Office applications and complications with the Recycle Bin.
In July 2025, Microsoft changed the default settings of Windows 11 to JScript9Legacy in versions 24H2 and later, continuing with version 25H2 in October 2025. This change aimed to enhance security by addressing vulnerabilities related to legacy scripting, particularly cross-site scripting (XSS).
A support article details a compatibility issue arising from the transition from jscript9.dll to jscript9legacy.dll, which affects how JScript manages execution context. Functions and definitions established by one script are no longer accessible to subsequent scripts, leading to failures in legacy applications.
To address this, Microsoft released the KB5077241 update, which requires manual activation of persistent JScript execution context through a Registry setting. The steps to implement this solution involve creating a feature control registry key and configuring a DWORD value for specific processes or all processes.