wusa.exe - Repair Issues and Download

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

wusa.exe file Windows Update Standalone Installer. The file was developed by for use with software. Here you will find detailed information about the file and instructions how to proceed in the event of wusa.exe related errors on your device. You can also download wusa.exe file compatible with Windows 10, Windows 8.1, Windows 8, Windows 7, Windows 7, Windows Vista, Windows Vista devices which will (most probably) allow you to solve the problem.

For Windows Compatible with: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows 7, Windows Vista, Windows Vista

File info

General information
Filename wusa.exe
File extension EXE
Description Windows Update Standalone Installer
Program Microsoft® Windows® Operating System
Author Microsoft Corporation
MIME type application/octet-stream
File type Executable application
System Windows NT 32-bit
Copyrights © Microsoft Corporation. All rights reserved.
Character set Unicode
Language cod English (U.S.)

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

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



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


Problems related to wusa.exe 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 wusa.exe 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.

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

The last solution is to manually download and replace wusa.exe 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 wusa.exe file.

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

  • Windows 10: C:\Windows\System32\
  • Windows 8.1: C:\Windows\System32\
  • Windows 8: 1: C:\Windows\System32\
  • Windows 7: C:\Windows\SysWOW64\
  • Windows 7: C:\Windows\SysWOW64\
  • Windows Vista: ---
  • Windows Vista: ---

If the steps did not solve your wusa.exe 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 wusa.exe
System Windows 10
File size 304128 bytes
Date 2017-03-18
File details
MD5 5f7f6436162780e81cee904e3b9d37d4
SHA1 eb45c44566ca3b96527558497a4194b488d96495
SHA256 220579a91b12c16034a2e487bf49a4ffd04c1e040503bf0659cc5540286add54
CRC32 571666e6
Example file location C:\Windows\System32\
Filename wusa.exe
System Windows 8.1
File size 305664 bytes
Date 2014-11-21
File details
MD5 f3ef56f76d69361022b47ef1e6201644
SHA1 8e3913a7085e596a9cc45f2b6a4795b9c3feef6c
SHA256 1e384e490aff301349d27c37139d304edc83cf62571875540ab468e3b0d65c06
CRC32 bbb909aa
Example file location C:\Windows\System32\
Filename wusa.exe
System Windows 8
File size 304640 bytes
Date 2012-07-26
File details
MD5 561ffddc8e1e177874e94ac6079b053c
SHA1 802a9fb5f5fd4bbb1ca456388a9ba0cfc7c6fd2a
SHA256 9d8de5d0cbbdf5913413c8c6a6d340d1b4921c38b140f86a63da6a1847e6658b
CRC32 987ca518
Example file location 1: C:\Windows\System32\
Filename wusa.exe
System Windows 7
File size 314880 bytes
Date -0001-11-30
File details
MD5 8cbd6fdacdcc0ed48baf607226d6d0c9
SHA1 b94d16ed6a439cfe591e7a20627f3033e71a10e2
SHA256 cb128faf0430ce1a90412546e90a3b6446c74887d696485cc2c3aaf10714a428
CRC32 7a9bf623
Example file location C:\Windows\SysWOW64\
Filename wusa.exe
System Windows 7
File size 307200 bytes
Date 2010-11-21
File details
MD5 c15b3d813f4382ade98f1892350f21c7
SHA1 a45c5abc6751bc8b9041e5e07923fa4fc1b4542b
SHA256 8f067da98eb3ea9f1db2f0063ff54e07d992fbf051779b467e222639be4127e3
CRC32 2d2f8bff
Example file location C:\Windows\SysWOW64\
Filename wusa.exe
System Windows Vista
File size 140800 bytes
Date -0001-11-30
File details
MD5 10be37532f4ad750958ab53a786f74bd
SHA1 a6bcaac1f3b30d69268379c77bcf26e47f463fd5
SHA256 adbcb316a9e45bba13e7c23a953778c9dc8ee54451632171497adc843a6a850d
CRC32 a32948dd
Example file location ---
Filename wusa.exe
System Windows Vista
File size 147968 bytes
Date 2009-04-11
File details
MD5 663f13995cf313674c18b4591ea2bf08
SHA1 31f0fdcde20039bfc0026fda9519a18cdb33f710
SHA256 7887744310d7e8d743bf8255918dcfafdd69c3c6ffa906a8d9bd1185374a77c1
CRC32 86f14f5d
Example file location ---