BK2 file converter How to convert BK2 file?

What is BK2 file?


The BK2 file extension is the default Windows Indexing Service Data File (.SID) created by Windows Search. It stores the result of searching and indexing, including file and folder names and contents, in a single file. At present, Microsoft has not released any information about the BK2 files on their website. However, there are many reasons to believe that they do exist and that they contain sensitive information such as email addresses or personal data. The contents of BK2 files are not visible but can be accessed through registry entries or manually opening them with an app like Notepad++.

BK2 Format details


Full Name Windows Indexing Service Data Format
Developer Microsoft
Category System Files

Software, that convert BK2 files


The easiest way to convert a BK2 file is to save it in a different file format using dedicated software. Below you will find a list of software programs that can handle BK2 files. Open your BK2 file with one of them and save in another file format.


BK2 Converters

  • Microsoft Windows
  • 1 BK2 converters