Extensions.js - How to Fix? Download Now

Sometimes Windows system displays error messages regarding corrupted or missing Extensions.js files. Situations like that can occur, for example, during a software installation process. Each software program requires certain resources, libraries, and source data to work properly. Corrupted or nonexistent Extensions.js file can therefore effect in failed execution of the started process.

Extensions.js file JavaScript. The file was developed by Microsoft for use with Windows software. Here you will find detailed information about the file and instructions how to proceed in the event of Extensions.js related errors on your device. You can also download Extensions.js file compatible with Windows 8.1, Windows 8 devices which will (most probably) allow you to solve the problem.

Compatible with: Windows 8.1, Windows 8

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Fix Extensions.js errors

1 Information about Extensions.js file
2 Errors related to Extensions.js file
3 How to fix Extensions.js related errors?

3.1 Scanning for malicious software
3.2 System and driver update
3.3 System File Checker tool
3.4 System recovery

4 Download Extensions.js

4.1 List of Extensions.js file versions

File info

General information
Filename	Extensions.js
File extension	JS
Type	Script
Description	JavaScript

Software
Program	Windows 8.1
Software	Windows
Author	Microsoft
Software version	8.1

Details
File size	1321
Oldest file	2012-07-26
Latest file	2014-11-21

Most common Extensions.js file related problems

There are various types of errors related to Extensions.js file. Extensions.js file may be located in wrong file directory on your device, may not be present in the system, or may be infected with malicious software and therefore not work correctly. Below is a list of most common error messages related to Extensions.js file. If you encounter one listed below (or similar), please consider the following suggestions.

Extensions.js is corrupted
Extensions.js cannot be located
Runtime Error - Extensions.js
Extensions.js file error
Extensions.js file cannot be loaded. Module was not found
cannot register Extensions.js file:
Extensions.js file could not be loaded
Extensions.js file doesn't exist

Extensions.js

Application could not be started because Extensions.js file is missing. Reinstall the application to solve the problem.

Problems related to Extensions.js can be addressed in various ways. Some methods are meant only for advanced users. If you don't have confidence in your skills, we suggest consulting a specialist. Fixing Extensions.js file errors should be approached with utmost caution for any mistakes can result in unstable or unproperly working system. If you have the necassary skills, please proceed.

How to fix Extensions.js errors in just few steps?

Remember, before taking any action related to system files perform a backup copy of your data!

Extensions.js file errors can be caused by various factors, so its is beneficial to try to fix them using various methods.

Step 1: Scan your computer for any malicious software

Windows files are commonly attacked by malicious software that prevents them from working properly. First step in addressing problems with Extensions.js file or any other Windows system files should be scanning the system for malicious software using an antivirus tool.

If by any chance you don't have any antivirus software installed on your system yet, you should do it immediately. Unprotected system is not only a source of file errors, but, more importantly, makes your system vulnerable to many dangers. If you don't know which antivirus tool to choose, consult this Wikipedia article – comparison of antivirus software.

Step 2: Update your system and drivers.

Installing relevant Microsoft Windows patches and updates may solve your problems related to Extensions.js file. Use dedicated Windows tool to perform the update.

Go to the Windows "Start" menu
Type "Windows Update" in the search field
Choose the appropriate software program (name may vary depending on your system version)
Check if your system is up to date. If any unapplied updates are listed, install them immediately.
After the update has been done,restart your computer in order to complete the process.

Beside updating the system, it is recommended that you install latest device drivers, as drivers can influence proper working of Extensions.js or other system files. In order to do so, go to your computer or device producer's website where you will find information regarding latest driver updates.

Step 3: Use System File Checker (SFC) tool

System File Checker is a Microsoft Windows tool. As the name suggests, the tool is used for identyfing and addressing system file related errors, including those related to Extensions.js file. After an error related to%fileextension% file has been discovered, the program attempts to automatically replace the Extensions.js file with properly working version. To use the tool:

Go to the Windows "Start" menu
Type "cmd" in the search field
Locate "Command Prompt" result – don't run it yet:
Click the right mouse button and select "Run as Administrator" option
Type "sfc /scannow" in console prompt to start the program and follow the instructions

Step 4: Restoring Windows system

Another approach is to restore system to previous state, before the Extensions.js file error occured. In order to restore your system, follow the instructions below

Go to the Windows "Start" menu
Type "System Restore" in the search field
Start the system restore tool – it's name may differ depending on version of the system
The application will guide you through the process – read the messages carefully
After the process has finished, restart your computer.

If all the above-mentioned methods failed and the Extensions.js file problem has not been resolved, proceed to the next step. Remember that the following steps are intended only for advanced users.

Download and replace Extensions.js file

The last solution is to manually download and replace Extensions.js file in appropriate folder on the disk. Select file version compatible with your operating system and click the "Download" button. Next, go to your web browser's "Downloaded" folder and copy the downloaded Extensions.js file.

Go to the folder where the file should be located and paste the downloaded file. Below is the list of Extensions.js file example directory paths.

Windows 8.1: C:\Program Files\WindowsApps\Microsoft.BingTravel_3.0.4.212_x86__8wekyb3d8bbwe\js\
Windows 8: 1: C:\Program Files\WindowsApps\Microsoft.BingTravel_3.0.4.212_x86__8wekyb3d8bbwe\js\

If the steps did not solve your Extensions.js file problem, you should consult a professional. A probability exists that the error(s) might be device-related and therefore should be resolved at the hardware level. A fresh operating system installation might be necessary – a faulty system installation process can result in data loss.

File versions list

Filename Extensions.js

System Windows 8.1

File size 1321 bytes

Date 2014-11-21

Download

File details
	MD5	2f5699783828482bcd6c87c738fc367c
	SHA1	fea684d902402135e16b2ec363fee0cc1339865b
	SHA256	51ee99a71d67ec5b2740caf920f0f76e5aebf73b96f9885cbb5929a506568e31
	CRC32	58db2708
	Example file location	C:\Program Files\WindowsApps\Microsoft.BingTravel_3.0.4.212_x86__8wekyb3d8bbwe\js\

Filename Extensions.js

System Windows 8

File size 3782 bytes

Date 2012-07-26

Download

File details
	MD5	e545ec4a4dfd878a49f9f571de3bda65
	SHA1	b2e35e91ba3ce2c10d0be25be09b023bb40cc59e
	SHA256	daff3ea05b1cdc6137a6a8b548955172ab3455ee5a6a5998f30934cc5d624dfd
	CRC32	b65e42e1
	Example file location	1: C:\Program Files\WindowsApps\Microsoft.BingTravel_3.0.4.212_x86__8wekyb3d8bbwe\js\