access-based enumeration

Access-based enumeration (ABE) is a feature in Windows file shares that hides files and folders from users who do not have permission to access them. While ABE enhances security and user experience by showing only accessible items, it can also cause performance issues. Discussions on WindowsForum highlight known problems such as high CPU usage and performance degradation when ABE is enabled, as documented in Microsoft KB articles. Additionally, users may encounter "Access Denied" errors on file shares with ABE enabled in Windows 7 and later versions. These threads provide references to official Microsoft support resources for troubleshooting and resolving these issues.