Fix Handler.js Errors

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

Handler.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 Handler.js related errors on your device. You can also download Handler.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

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 Handler.js

4.1 List of Handler.js file versions

File info

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

Software
Program	Windows 8.1
Software	Windows
Author	Microsoft
Software version	8.1

Details
File size	274
Oldest file	2012-07-26
Latest file	2014-11-21

Most common Handler.js file related problems

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

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

Handler.js

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

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

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

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

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

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

Windows 8.1: C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_17.5.9600.20605_x86__8wekyb3d8bbwe\modernpeople\addressbook\controls\virtualizedgrid\
Windows 8: 1: C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_17.5.9600.20605_x86__8wekyb3d8bbwe\modernpeople\addressbook\controls\virtualizedgrid\

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

System Windows 8.1

File size 274 bytes

Date 2014-11-21

Download

File details
	MD5	96c9448f4dbaf9dc4b49354cd5cf1d45
	SHA1	1bb52d34468d1d1164ac4d076bf67e8da2f0c880
	SHA256	a27e3db77eba017d49f85f68382779fc0afbf5648f9a02e026ee6eab6148fe85
	CRC32	99ceded7
	Example file location	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_17.5.9600.20605_x86__8wekyb3d8bbwe\modernpeople\addressbook\controls\virtualizedgrid\

Filename Handler.js

System Windows 8

File size 245 bytes

Date 2012-07-26

Download

File details
	MD5	fd18984a02736522b7e652cfe7942d58
	SHA1	b51265b391412695f381a9e54c9360c36a2e9dc1
	SHA256	274c600dfa8831ce8e2c01c72f54c710bc8f88e6a922cb6158a94b6d78f73e9f
	CRC32	d02837de
	Example file location	1: C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_17.5.9600.20605_x86__8wekyb3d8bbwe\modernpeople\addressbook\controls\virtualizedgrid\