I got a new computer and I wanted to install Minecraft (Original version). When I opened the launcher, it shows small message box, writing 'Downloading runtime'. When this download finished, It shows up one more box, and there was written 'Unable to start launcher, please try again.' I tried it almost 20 times and it still isn't working.

2 Answers 2


I had the same problem so here's what I did.

go to https://minecraft.net/download and where it says "Minecraft for Windows" click on "show more platforms" and try the old download. It worked just fine for me.

  • Hello, and welcome to gaming.se. Please help us keep the signal-to-noise ratio high and don't post "I'm having this problem too" comments as answers. Once your reputation improves a bit you'll be able to leave comments to questions, but until then please don't post an answer that isn't an answer. Dec 25, 2014 at 16:21
  • 8
    @Shadur I don't think this is a "I'm having this problem too" comment. He's offering a viable solution that he used to resolve the same issue. Dec 25, 2014 at 17:26
  • 1
    Sorry for offering insight to the problem... Dec 26, 2014 at 15:55

Try the following solutions:

  1. Disable any active antivirus software or firewall (then start the application)
  2. Update Java by uninstalling current java and re-installing updated java
  3. Uninstall the Minecraft application and re-install it
  4. Reboot your computer and attempt to open up the application

If all fails refer to the post by Mojang Support.

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