File extension BK2
| File type | Windows Indexing Service Data Format |
| Developer | Microsoft |
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What is a BK2 file?
BK2 is a system indexing file written in binary format. BK2 files are used by Microsoft Windows operating systems to store search data.
BK2 allow for quicker and easier search of disk data due to data indexing – search engine doesn’t need to search for information by scanning the whole disk after each query. Windows indexing service can be manually disabled in Windows Search panel setting to free resources, a useful option for users with weaker or older computers.
Program(s) that can open the .BK2 file
Windows
How to open BK2 files
If you cannot open the BK2 file on your computer - there may be several reasons. The first and most important reason (the most common) is the lack of a suitable software that supports BK2 among those that are installed on your device.
A very simple way to solve this problem is to find and download the appropriate application. The first part of the task has already been done – the software supporting the BK2 file can be found in the table. Now just download and install the appropriate application.
Possible problems with the BK2 format files
The inability to open and operate the BK2 file does not necessarily mean that you do not have an appropriate software installed on your computer. There may be other problems that also block our ability to operate the Windows Indexing Service Data Format file. Below is a list of possible problems.
- Corruption of a BK2 file which is being opened
- Incorrect links to the BK2 file in registry entries.
- Accidental deletion of the description of the BK2 from the Windows registry
- Incomplete installation of an application that supports the BK2 format
- The BK2 file which is being opened is infected with an undesirable malware.
- The computer does not have enough hardware resources to cope with the opening of the BK2 file.
- Drivers of equipment used by the computer to open a BK2 file are out of date.
If you are sure that all of these reasons do not exist in your case (or have already been eliminated), the BK2 file should operate with your programs without any problem. If the problem with the BK2 file has not been solved, it may be due to the fact that in this case there is also another rare problem with the BK2 file. In this case, the only you can do is to ask for assistance of a professional staff.
Similar extensions
| .adm | Administrator Policy Template Format |
| .adml | Microsoft Administrative Language-specific XML Template Format |
| .admx | Microsoft Administrative XML Template Format |
| .aml | Microsoft Assistance Markup Language |
| .ani | Animated Cursor |
| .ann | Microsoft Windows Help Annotation Format |
| .aos | Archos Signed Encrypted Data Format |
| .asec | Google Android Encrypted Application Package Format |
How to associate the file with an installed software?
If you want to associate a file with a new program (e.g. my-file.BK2) you have two ways to do it. The first and the easiest one is to right-click on the selected BK2 file. From the drop-down menu select "Choose default program", then click "Browse" and find the desired program. The whole operation must be confirmed by clicking OK. The second and more difficult to do is associate the BK2 file extension to the corresponding software in the Windows Registry.
Is there one way to open unknown files?
Many files contain only simple text data. It is possible that while opening unknown files (e.g. BK2) with a simple text editor like Windows Notepad will allow us to see some of the data encoded in the file. This method allows you to preview the contents of many files, but probably not in such a structure as a program dedicated to support them.