How to Fix weapon.dat Error? Is it safe?

Frustrated by the weapon.dat error message? Well, you should want to know what this weapon.dat file is, what causes this error and the most important thing is how to fix this error. In this page, you will find all answers to your questions about this weapon.dat and the methods to fix it.

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What's weapon.dat File?

As its file extension denotes, weapon.dat is a vital dat file and it's a component of the software weapon developed by Windows Software Developer. The latest version of weapon.dat file is 1, 1, 0, 4 and MD5 value is e586491a2b2056fda9c5c9dd8d3c6d1d. This error can be seen on Windows XP, Windows Vista, Windows 7, Windows 8 and Windows 10.

weapon.dat file information:
File Name:   
   weapon.dat (Free Scan)
File Description:   
Product Name:   
Product Version:   
   1, 1, 0, 4
   Windows Software Developer
File md5:   
File type:   
   dat file
Security Level(0-5):   
OS Infected:   
   Download weapon.dat Error Free Scan Tool

Why Do I Receive weapon.dat Error?

weapon and the Windows will generate weapon.dat error when weapon.dat file cannot be used due to the removal or corruption of weapon.dat file. Virus infection is also a potential cause of weapon.dat error.

Popular weapon.dat Error Messages

  • The application has failed to start because weapon.dat was not found. Re-installing the application may fix this problem.
  • The program can't start because weapon.dat is missing from your computer. Try reinstalling the program to fix this problem.
  • weapon.dat failed. The specified module could not be found.
  • File not found: weapon.dat.
  • Failed to load library 'weapon.dat'.
  • Access violation in module 'weapon.dat'.
  • Component 'weapon.dat' or one of its dependencies not correctly registered a file is missing or invalid.

You may receive weapon.dat error when you run or close weapon, start or shut down the computer, or use specific function of weapon. The time you encounter the error is very important to troubleshoot the problem.

Causes of weapon.dat Error

weapon.dat error can be caused by plenty of reasons. The following are the most common causes of weapon.dat error.

  • The latest version of weapon.dat file is overwritten by a previous version installed by another newly-installed program.
  • There is a malfunctioning or faulty hardware in your computer.
  • weapon.dat file is infected with malicious adware, Trojans, spyware and malware.
  • The associated entries of weapon.dat are corrupted in the registry.
  • weapon.dat file that is still used by other programs is uninstalled by another program.

How to Fix weapon.dat Error?

If you're confident of fixing this problem yourself, we have listed several solutions to troubleshoot your weapon.dat problem.

Method 1: Replace corrupted system files with System File Checker.

System File Checker is a utility integrated in Windows system to help users easily scan and replace corrupted system files which may include files related to weapon.dat. If a "protected" file is modified or missing, this utility will restore it from a cached copy to ensure Windows work correctly.


a. Open an elevated command prompt.

Windows Vista and Windows 7

Click Start, click All Programs, Accessories, and then right click Command Prompt and click Run as administrator.

command prompt windows 7

Windows 8, Windows 8.1 and Windows 10

Open Win X menu by holding Windows and X keys, and then click Command Prompt (Admin).

windows8 win x menu

b. After confirming the UAC prompt, type sfc /scannow in the Command Prompt and hit Enter.

sfc windows 7

c. System File Checker is scanning your system and takes some time to complete the repair.

Method 2: Run a virus scan.

Malware infection is one of the most popular cause of various computer problems like weapon.dat error. Computer malware can make their way into the system, change system settings and corrupt system files. When this happens, weapon and Windows becomes more prone to weapon.dat error and even malfunction.


a. Restart your system into Safe Mode with Networking.

b. Open your antivirus or antispyware program. (You can also use this recommended malware detect tool)

c. Run a full scan for your system.

d. After the scan completes, either quarantine or remove any detected malware.

e. Restart your system.

Method 3: Look for deleted weapon.dat file.

When weapon and the Windows cannot find weapon.dat file, it will tell you that weapon.dat is missing or not found. As a result, try your luck to see if weapon.dat is in the Recycle Bin.


a. Double click on the Recycle Bin icon on your desktop to open it.

b. Search thru all deleted files there and look for the weapon.dat file.

c. If it's found, then right click on it and click Restore.

restore file

What can you do if the Recycle Bin has been emptied? Try to use a file recovery tool to help you recover the file.

Method 4: Replace corrupted hardware devices.

If your weapon.dat error cannot be fixed after you tried the above methods, then it may be caused by hardware failure. As for hardware failure, you need to replace a new piece of hardware device to fix your problem.

Method 5: Repair corrupted Windows registry.

As the most important part of Windows operating system, Windows registry is a place that stores all information and configurations of software and hardware. A problematic registry is one of the most common causes of computer errors like weapon.dat error. Software installation, uninstallation, malware infection can make changes to the registry. Over time, more and more invalid entries are left and accumulated in the registry and then lead to various errors and problems. The registry needs regular maintenance to keep it tidy and stable. Manual editing the registry is not practical for people with no computer expertise, it's recommended that you use a registry cleaner to do this job.


Note: It requires certain computer knowledge to perform the above solutions. If you're not comfortable with this process, it's recommended that you download and run this automatic error fix utility to fix your PC problems automatically:

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Does weapon.dat error still persist?

Feel free to contact us for more assistance.

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