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How to Repair wd.sys? Download Now

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

wd.sys file Microsoft Watchdog Timer Driver. 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 wd.sys related errors on your device. You can also download wd.sys file compatible with Windows 8, Windows 7, Windows Vista, Windows Vista devices which will (most probably) allow you to solve the problem.

For Windows Compatible with: Windows 8, Windows 7, Windows Vista, Windows Vista
User popularity

Fix wd.sys errors

File info

General information
Filename wd.sys
File extension SYS
Description Microsoft Watchdog Timer Driver
Software
Program Microsoft® Windows® Operating System
Author Microsoft Corporation
Details
MIME type application/octet-stream
File type Driver
System Windows NT 32-bit
Copyrights © Microsoft Corporation. All rights reserved.
Character set Unicode
Language cod Neutral
wd.sys

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

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

wd.sys

Error

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

OK

Problems related to wd.sys 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 wd.sys 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.

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

The last solution is to manually download and replace wd.sys 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 wd.sys file.

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

  • Windows 8: C:\Windows\System32\drivers\
  • Windows 7: C:\Windows\System32\DriverStore\FileRepository\wd.inf_amd64_neutral_759109899b486d47\
  • Windows Vista: ---
  • Windows Vista: ---

If the steps did not solve your wd.sys 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 wd.sys
System Windows 8
File size 20720 bytes
Date 2012-07-26
Download
File details
MD5 9bf0ce1e215789664eb563a52ec0b83b
SHA1 fab506d11f8a9d6fd892902270758e0ca9854dec
SHA256 dd593bb20b6c691964fed6e5d6021ff20044d1d41d147226b3824f417531eac8
CRC32 8d834aab
Example file location C:\Windows\System32\drivers\
Filename wd.sys
System Windows 7
File size 21056 bytes
Date 2009-07-14
Download
File details
MD5 72889e16ff12ba0f235467d6091b17dc
SHA1 d6f087f8d2780b83a5472725c9d778340169c0e9
SHA256 f2fd0bbd075e33608d93f350d216f97442ab89abd540513c2d568c78096e12a8
CRC32 6014ed70
Example file location C:\Windows\System32\DriverStore\FileRepository\wd.inf_amd64_neutral_759109899b486d47\
Filename wd.sys
System Windows Vista
File size 24120 bytes
Date -0001-11-30
Download
File details
MD5 0c17a0816f65b89e362e682ad5e7266e
SHA1 66c21adfc5d2ec68b44ec1bc4bbca4f8bd62fd6b
SHA256 6233213d07b234056a1ec6fe1166a65371645269132b428ff3a29ddc0000301a
CRC32 0c1e4fe4
Example file location ---
Filename wd.sys
System Windows Vista
File size 21608 bytes
Date 2006-11-02
Download
File details
MD5 59b501b0a04c9672142b7ffa2bdbf663
SHA1 6e9a7dc479ead9d66a267b27319faa781b691762
SHA256 05b15e3354d4c4e116c903081236c815e464fe349a50f1e0f3a02eef501ac5f8
CRC32 9bf1ecf3
Example file location ---