How to Corrupt a File on Purpose (4 Methods)

Many users wonder how they can damage or corrupt a file on purpose, be it a Word document, a presentation or a folder itself. Why would they want to do it? You may not have had time to submit an assignment on time and are trying to make the teacher believe that the file is corrupted. Although there would be hundreds of excuses to really want to do it. In this guide we are going to tell you 4 methods to corrupt a file with tools that we have on our PC and with online platforms.

Although in the end we will also tell you some program with which to repair these damaged files easily. You may also be interested in how to fix error 0x80070570 for corrupted files.

Method 1. Change file extensions to corrupt a file

The first method is the simplest, although not as complete as the ones we will see later. Above all, it is a good idea to corrupt Word or Office documents quickly and efficiently. Remember to always have a copy of the file that you are going to damage in case you want to continue opening it without problems later.

  • The first thing you should do is disable the “Hide the extension” option to see the one of the file you want to damage. To do so, type “File Options” in the search menu and open File Explorer Options.
  • Now access the tab Watch and uncheck the box «Hide extensions for known file types«. Then click Apply and OK again.
Hide extensions for known file types
  • If you have Mac, right click on the file and then click Get information.
  • go to name and extension and uncheck the box Hide extension.
unhide mac extension

Once this is done, you will simply have to change the file extension by right clicking on it > Rename > and rename it as «File name.docx«. In this way, the Word program will not be able to open the file because it does not recognize it.

Method 2. Corrupt a file using Notepad in Windows

Another similar method to deliberately corrupt a file, be it Word or PDF, is by using Windows Notepad. It will only take you a minute and you must follow these steps:

  • Right click about the file to be damaged and open with Notepad.
  • Once opened, select a 10 lines of all the commands you will see in the window and delete them.
  • Save the file, close notepad and now try to open it as usual. Easy right?
corrupt notepad file

Method 3. Corrupt a file online with Corrupt-a-File

If what you want is damage a file and then send it to your boss or a teacher, you will need something more professional. Especially if they already have some knowledge of computers and office automation. For that, it is best to use an online tool like Corrupt-a-file where our file is almost irreparably corrupted.

  • Access the website of Corrupt-a-File Y upload the file from your PC, Drive or Dropbox.
  • Now you just have to wait for the program to perform the operation and download the damaged file on your PC. Easy, fast and free.
corrupt-a-file

Method 4. Using a file compression tool

Finally, if what you want is to corrupt a folder full of files, you can use a program like Winrar Archiver to harm her. You can actually use whatever tools you have installed to compress a folder of files for sharing. The steps to follow are simple:

  • right click on the folder or files that you want to damage and select the option of Compress.
  • When compression is almost complete at 90%make one pause and cancel compression.
  • This causes the compression tool to have created a new file but it is corrupted.
compress files

How to repair damaged files

Before finishing, you should keep in mind that if at any time you receive a damaged file of this type, it is possible to recover it. To do this, it is best to use some tools such as EaseUS Data Recovery Wizard that you can download for free in trial version for Windows Y Mac.

The best thing about this program is that it can repair damaged Excel, Word, PPT, PDF documents, and even broken videos and images. And if you need it, we will tell you what to do to recover the files that have been deleted from a USB.

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