One such error is the Minecraft Launcher Error 0x803f8001 on Windows PC, which can prevent players from launching the game.

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'.Minecraft is a popular sandbox game enjoyed by millions of players worldwide, but encountering errors while launching the game can be frustrating. 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 how to restart launcher