Repair and Download App.js Now

Sometimes Windows system displays error messages regarding corrupted or missing App.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 App.js file can therefore effect in failed execution of the started process.

App.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 App.js related errors on your device. You can also download App.js file compatible with Windows 10, Windows 8.1, Windows 8.1, Windows 8.1, Windows 8.1, Windows 8, Windows 8, Windows 8, Windows 8 devices which will (most probably) allow you to solve the problem.

Compatible with: Windows 10, Windows 8.1, Windows 8.1, Windows 8.1, Windows 8.1, Windows 8, Windows 8, Windows 8, Windows 8

User popularity

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

4 Download App.js

4.1 List of App.js file versions

File info

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

Software
Program	Windows 10
Software	Windows
Author	Microsoft
Software version	10

Details
File size	12948
Oldest file	2012-07-26
Latest file	2017-03-18

Most common App.js file related problems

There are various types of errors related to App.js file. App.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 App.js file. If you encounter one listed below (or similar), please consider the following suggestions.

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

App.js

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

Problems related to App.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 App.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 App.js errors in just few steps?

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

App.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 App.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 App.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 App.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 App.js file. After an error related to%fileextension% file has been discovered, the program attempts to automatically replace the App.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 App.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 App.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 App.js file

The last solution is to manually download and replace App.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 App.js file.

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

Windows 10: C:\Windows\SystemApps\Microsoft.Windows.CloudExperienceHost_cw5n1h2txyewy\js\
Windows 8.1: C:\Program Files\WindowsApps\Microsoft.BingWeather_3.0.4.214_x86__8wekyb3d8bbwe\js\
Windows 8.1: C:\Program Files\WindowsApps\Microsoft.BingWeather_3.0.4.214_x86__8wekyb3d8bbwe\js\
Windows 8.1: C:\Program Files\WindowsApps\Microsoft.BingWeather_3.0.4.214_x86__8wekyb3d8bbwe\js\
Windows 8.1: C:\Program Files\WindowsApps\Microsoft.BingWeather_3.0.4.214_x86__8wekyb3d8bbwe\js\
Windows 8: 1: C:\Program Files\WindowsApps\Microsoft.BingWeather_3.0.4.214_x86__8wekyb3d8bbwe\js\
Windows 8: 1: C:\Program Files\WindowsApps\Microsoft.BingWeather_3.0.4.214_x86__8wekyb3d8bbwe\js\
Windows 8: 1: C:\Program Files\WindowsApps\Microsoft.BingWeather_3.0.4.214_x86__8wekyb3d8bbwe\js\
Windows 8: 1: C:\Program Files\WindowsApps\Microsoft.BingWeather_3.0.4.214_x86__8wekyb3d8bbwe\js\

If the steps did not solve your App.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 App.js

System Windows 10

File size 12948 bytes

Date 2017-03-18

Download

File details
	MD5	5066f34e812f9efc573c26456e791922
	SHA1	acbfa9182b5fb4f5f6986a85b6b6fa6f6f7a3b84
	SHA256	04e58e1eaff472fcf14fe41265e7d2afec490a0395f2f0b4f118809ea43a303a
	CRC32	df4cb2c4
	Example file location	C:\Windows\SystemApps\Microsoft.Windows.CloudExperienceHost_cw5n1h2txyewy\js\

Filename App.js

System Windows 8.1

File size 21825 bytes

Date -0001-11-30

Download

File details
	MD5	1eb3b1ebefb31a5632d18b2aae6499b4
	SHA1	25eb8a991bf8e8900b348c4038aa8040134dba69
	SHA256	075a83e9b849b7638bc1763d26331945527c12e383e8be3bd34de768e1db17d1
	CRC32	8b04e9fd
	Example file location	C:\Program Files\WindowsApps\Microsoft.BingWeather_3.0.4.214_x86__8wekyb3d8bbwe\js\

Filename App.js

System Windows 8.1

File size 1477 bytes

Date -0001-11-30

Download

File details
	MD5	2d68fb4e58432a217432514218aa9639
	SHA1	12ac7fce31036b32687d0a4a53139836d77e5fc5
	SHA256	aa04d9ab5b3bbc87ea52f1782ea58b8c87e5090a951c553215cd9cdc2ae16b15
	CRC32	65ef8471
	Example file location	C:\Program Files\WindowsApps\Microsoft.BingWeather_3.0.4.214_x86__8wekyb3d8bbwe\js\

Filename App.js

System Windows 8.1

File size 8797 bytes

Date 2014-11-21

Download

File details
	MD5	a5286ae801eb31bae79c4144cc1bf8d5
	SHA1	78b73b46aae3e84a01c989d2d48f7d3e08f66809
	SHA256	a174cbbf5cedbb2ac4f944f5ab321f664c2937f836d5a305cc05d98f883fb7d2
	CRC32	0201617e
	Example file location	C:\Program Files\WindowsApps\Microsoft.BingWeather_3.0.4.214_x86__8wekyb3d8bbwe\js\

Filename App.js

System Windows 8.1

File size 6894 bytes

Date -0001-11-30

Download

File details
	MD5	af9a3d699789d0b2229026ec1bc74ae7
	SHA1	34616540b9a0ff6f40bb3c46f27e9aeb08788ad9
	SHA256	5ab15bb8e8802577d6a370c05bb19ba6053978de3f81fc4be522e8c05aebdad7
	CRC32	423b52e5
	Example file location	C:\Program Files\WindowsApps\Microsoft.BingWeather_3.0.4.214_x86__8wekyb3d8bbwe\js\

Filename App.js

System Windows 8

File size 9629 bytes

Date 2012-07-26

Download

File details
	MD5	978d25be507e0287423c0fed18749a4e
	SHA1	26af0510489599940fcf821067e6f00aee13d3b3
	SHA256	3c07a88bd7d2e8765af56f68fa94fdbd2aeece49b209d4803faad6af00adbe32
	CRC32	b516c7ed
	Example file location	1: C:\Program Files\WindowsApps\Microsoft.BingWeather_3.0.4.214_x86__8wekyb3d8bbwe\js\

Filename App.js

System Windows 8

File size 17522 bytes

Date -0001-11-30

Download

File details
	MD5	a60d33a4a1e794b291abd8f34209e7fc
	SHA1	a0ab86e847c7bcd3f6540a4c7c2949d194c38e03
	SHA256	40a36f958f2c6c27cbfda2acae6f13ee3294c4a9feeb68f5bc411abf6308dfed
	CRC32	3aaf16e7
	Example file location	1: C:\Program Files\WindowsApps\Microsoft.BingWeather_3.0.4.214_x86__8wekyb3d8bbwe\js\

Filename App.js

System Windows 8

File size 22008 bytes

Date -0001-11-30

Download

File details
	MD5	a763e73f86eb11499dca367867a763bb
	SHA1	0f705691d0589847356845720a55b097e10d686f
	SHA256	14f19889d53fef6bc334394d1e210e427aa485ffd39afd469871061ac0d9cee8
	CRC32	d7e9b559
	Example file location	1: C:\Program Files\WindowsApps\Microsoft.BingWeather_3.0.4.214_x86__8wekyb3d8bbwe\js\

Filename App.js

System Windows 8

File size 4408 bytes

Date -0001-11-30

Download

File details
	MD5	c514f3c8024e124566d935e307f7c9d0
	SHA1	87d89714b7369c78960625e557b4e490a824a10a
	SHA256	d62e485e41a11fec2ba450f63b3dd05e9ccb5032a12210c761a1aee710277505
	CRC32	39c4ab20
	Example file location	1: C:\Program Files\WindowsApps\Microsoft.BingWeather_3.0.4.214_x86__8wekyb3d8bbwe\js\