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In the Microsoft Windows operating system, index.dat is a hidden database file used by the Internet Explorer web browser. It functions as an information storage database of recent browser activity, enabling quick access to that information when needed again by Internet Explorer, thus improving browser performance.
Windows Search is the successor of the Indexing Service, a content indexing solution originally developed as an optional download for Windows NT 4.0 and Internet Information Services 3.0, designed to gather resources located on Web servers; it is a remainder of the Object File System of the Cairo operating system project that never fully emerged. [1]
Once created, the index is continually updated by the application; in the case of NTFS the updates are fetched from the NTFS change journal. [6] Specific folders on any file system can also be added to the index, but the indexing of folders not using NTFS or ReFS will be slow, [7] although searching using the completed index will not be.
Windows 10 is a version of Windows NT and the successor of Windows 8.1. Some features of the operating system were removed in comparison to Windows 8 and Windows 8.1, and further changes in features offered have occurred within subsequent feature updates to Windows 10. Following is a list of these.
However, INDEX does not override noindexing via MediaWiki:Robots.txt. [10] As explained above, this magic word doesn't work in mainspace (on articles). The ability to add the INDEX magic word to user spaces (User:, User talk:) has been restricted by an edit filter to extended confirmed users following a community discussion. [11]
Indexing Service was a desktop search service included with Windows NT 4.0 Option Pack [1] as well as Windows 2000 and later. [2] [3] [4] The first incarnation of the indexing service was shipped in August 1996 [1] as a content search system for Microsoft's web server software, Internet Information Services.
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The utility searches files that are no longer of any use, and enables the user to delete them. The candidates for deletion are categorized as: "Windows Update Cleanup": Copies of Windows updates that are already installed "Microsoft Defender Antivirus": Temporary files that Microsoft Defender Antivirus no longer needs