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ui.js - Repair Issues and Download

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

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

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

File info

General information
Filename ui.js
File extension JS
Type Script
Description JavaScript
Software
Program Windows 10
Software Windows
Author Microsoft
Software version 10
Details
File size 872119
Oldest file 2012-07-26
Latest file 2017-03-18
ui.js

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

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

ui.js

Error

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

OK

Problems related to ui.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 ui.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.

ui.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

Virus Scan

Windows files are commonly attacked by malicious software that prevents them from working properly. First step in addressing problems with ui.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.

Windows Update

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

  1. Go to the Windows "Start" menu
  2. Type "Windows Update" in the search field
  3. Choose the appropriate software program (name may vary depending on your system version)
  4. Check if your system is up to date. If any unapplied updates are listed, install them immediately.
  5. 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 ui.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

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 ui.js file. After an error related to%fileextension% file has been discovered, the program attempts to automatically replace the ui.js file with properly working version. To use the tool:

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

Step 4: Restoring Windows system

Windows Recovery

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

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

If all the above-mentioned methods failed and the ui.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 ui.js file

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

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

  • Windows 10: C:\Windows\SystemApps\Microsoft.Windows.CloudExperienceHost_cw5n1h2txyewy\Microsoft.WinJS\js\
  • Windows 10: C:\Windows\SystemApps\Microsoft.Windows.CloudExperienceHost_cw5n1h2txyewy\Microsoft.WinJS\js\
  • Windows 8.1: ---
  • Windows 8.1: ---
  • Windows 8: ---
  • Windows 8: ---

If the steps did not solve your ui.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 ui.js
System Windows 10
File size 872119 bytes
Date -0001-11-30
File details
MD5 b9baf845895de1a2d118fa59ed726917
SHA1 678185f30439ea1d3422cda9b854bb195dc93f3c
SHA256 5774874886792da1472a71469ed5e01c4c297f3898675e32959d385bd4877cc1
CRC32 c0403fa5
Example file location C:\Windows\SystemApps\Microsoft.Windows.CloudExperienceHost_cw5n1h2txyewy\Microsoft.WinJS\js\
Filename ui.js
System Windows 10
File size 83281 bytes
Date 2017-03-18
File details
MD5 c661e15d93472485346176c2e0c76053
SHA1 115d1a82140d0671f83df791b461f94e6cea6098
SHA256 0487e1f4c0175a64f7951a4bf9e73895428e1cd34e50f0b42d6f8ce48ec73368
CRC32 67d49583
Example file location C:\Windows\SystemApps\Microsoft.Windows.CloudExperienceHost_cw5n1h2txyewy\Microsoft.WinJS\js\
Filename ui.js
System Windows 8.1
File size 2637273 bytes
Date -0001-11-30
File details
MD5 0591d94a0e9991c835200c5faf1b21f0
SHA1 56cfbd7bbeb834f181afa93343f1f737e8001b4f
SHA256 3d8f26920706b52688ab2cded303ac63d0c16a33fec9d17fcc76383a1de69b78
CRC32 fbbfa8ec
Example file location ---
Filename ui.js
System Windows 8.1
File size 10684 bytes
Date 2014-11-21
File details
MD5 bfdb1fe2bb8731cfc0722d6200ab0fe1
SHA1 4bae7f0bba5049db880a2012b411788baca58063
SHA256 23e47672eae30d16a5c383d8ce383e81421f45a8aed3f854ddb5c614cc2d49ae
CRC32 c44a6b8d
Example file location ---
Filename ui.js
System Windows 8
File size 74585 bytes
Date 2012-07-26
File details
MD5 06b2012e40d1d92a0daec3883e740010
SHA1 be55733d3f0a0a17cd9cedea7321bc8e39f8c7f5
SHA256 831a91a7af70b34ad7300568599a8c25c206b66f1ae96ebf251e8ffa94686a3a
CRC32 8a547273
Example file location ---
Filename ui.js
System Windows 8
File size 1673699 bytes
Date -0001-11-30
File details
MD5 e3b0cbf18747bc5ce4d96a8b45a1f520
SHA1 3d83c6207e46a054d3e9b0ea52b9c87409a86579
SHA256 1b50422a2ade6b79bb6d3f8ca30d9b74f46472cdfe59d499fa7730a93decfca6
CRC32 06e4bb31
Example file location ---