How to Fix the “Failed to Download File, the File Contents Differ” Error in Minecraft

When you get the “Failed to download file, the contents differ from what was expected” message in Minecraft, it can really throw you off.

If this happens, you’ll have to cancel your plans to spend several hours mining in your virtual world or exploring its dungeons.

If your Minecraft launcher is having trouble downloading the file, too, we’ll go over several potential solutions to get you back in the game.

Failed to Download File, the File Contents Differ

How To Fix the “Failed To Download File, The File Contents Differ” Error?

Taking a detailed look at the contents of the download error notice will reveal more information about it.

Relax; we’ve got you covered with detailed troubleshooting instructions to restore your Minecraft launcher and prevent any data loss due to the “Failed to download file.

File contents differ from what was intended” error message. If one strategy doesn’t work, try the alternative.

Method 1. Change the Opening Preference of Files With the .JAR Extension

To access the contents of a.JAR file, a Java virtual machine is necessary. Java’s file opening preferences must be adjusted.

So that a.JAR file’s classes and resources can be loaded and executed in a single request.

If another programme is designated as the default for opening these types of files, they will not be executed. This sloppy implementation may also contribute to the aforementioned flaw.

Here’s how to make the necessary adjustments:

Step 1: Locate the files you need under C:Users%username%AppDataRoaming.

Step 2: Click the.minecraft domain.

Step 3: Select the file’s properties by right-clicking on the file and then selecting the.JAR extension. (Here, a.JAR file in the addons folder is used to modify the default application for opening files.)

Step 4: Select the button labelled Change that is situated next to Opens With.

Step 5: To view these file types, Java (or the JDK) must be selected.

To change how you want to open other files with the.JAR extension, just follow the same steps.

If the file extension is already associated with your preferred file opening method, however, you can skip this step.

Method 2. Update Minecraft to the Latest Release

If you’re experiencing the failed to download issue, updating Minecraft to the most recent version may help.

Step 1: The Minecraft Launcher can be customised by selecting the Settings cog next to your username.

Step 2: Then, after the Minecraft launcher has updated, see if the download file problem has been fixed by clicking Force Update.

Method 3. Check Corrupted Minecraft Mods

These problems can occur if a Minecraft mod is corrupted. Launch File Explorer, navigate to “C:Users%username%AppDataRoaming.minecraft.”

Select the mods, and copy and paste them into a new location. Launch the game and see if it’s functioning properly. If the game is functioning normally, then one of the mods is broken.

If removing the most recently installed mod doesn’t solve the problem, try turning off each mod in turn until you discover the offending add-on.

Method 4. Re-download the Minecraft Client

The final option, if nothing else has worked, is to reinstall Minecraft. Then remove it from your computer immediately.

The next step is to head over to and grab the most recent build of Minecraft. I really do hope this works for you.

We trust that the steps outlined below will help you fix the problem.


The game may not start up properly due to corrupted or missing files. Minecraft’s “Minecraft failed to download the file” notification appears beside the “Launching the game files” problem message.

In this piece, we discuss the problems and their causes. Simply scroll ahead to find quick solutions to your problems.