The easiest way to fix Minecraft following this error is to follow the instructions in the error message itself. Here are 6 ways to fix the “Failed to download file” glitch. When this happens with the Minecraft Launcher, you get the “Failed to download file” error message. Unfortunately, it can sometimes mistakenly identify legitimate apps as malicious. The firewall is designed to protect your system from suspicious network activity. This may be due to incorrect installation, incompatibility with the version of Minecraft, or mod files that became corrupted during installation. This Minecraft error occasionally appears after installing a mod. If this is out of date, or the files are corrupted, the download process may be hampered. The Java Edition of the Minecraft video game is opened via the Minecraft Launcher application. Make sure it's named 'minecraft.jar' or 'minecraft' as well, if not name it that way (if it has the ending '.jar', rename it to 'minecraft.jar', otherwise rename it to 'minecraft'.As with every glitch, there are multiple things that might be to blame, and it may take some troubleshooting to find the exact cause. The best way to do this is to delete the current one and then paste the wanted one in its place. minecraft/bin folder with your backed up version. If you already have the minecraft.jar of the previous version (or Pre-Release), you just need to replace the minecraft.jar in the. It's recommend to create a subfolder which is named with the version which you are backing up, for example '1.2.5'. Copy it, for example to a folder on the desktop named 'Minecraft Backups'. In the File Explorer, open 'bin' and in which you will find minecraft.jar. In the Minecraft Launcher, click 'Options' and then click on the Path right behind 'Game location on disk'. If you want to restore your Minecraft installation to a previous version, you need the original minecraft.jar file (of the version you like to roll back to) which was downloaded by the Launcher.īest way to get the minecraft.jar backup fully legal is just to create it by your own right after you downloaded the latest version: This can also be used to get a fresh Minecraft installation (it will keep your saves and texture packs, but not your mods.). Finally, click 'Done' and login with your Minecraft credentials. Click 'Options' next to the username textbox, then 'Force update!' on the 'Launcher Options' window. To update Minecraft, start the Minecraft Launcher.

2.1 Creating backups of the minecraft.jar.

Minecraft launcher update error