Open your control panel, click Programs/Uninstall a program, find java in the list, right click it, click uninstall. Wait for the uninstall to complete, reboot your computer even if it does not ask you to, and then go here and click on the "Free Java Download" button...
Once you have downloaded the installer close your web browser (so that it will install the java plug-in to your default browser too) and then run the installer to re-install the current version of Java.
i tried it and minecraft still balck screen and not downloaded
Does it download and install the files if you disable your anti-virus? Please try that and tell us what happens.
(Just remember to turn it back on before going back out on the web)
If you have re-installed Java and created a rule for your firewall to allow inbound and outbound connections to javaw.exe thru it then the only thing left to check is whether your anti-virus is blocking it as a suspicious file and not notifying you of it.
I am having the same issue besides the fact that I can't even get to the login screen, it instantly locks up then turns black. If I figure out how to fix the problem I will report back.
You need to have both java.exe and more importantly for the game javaw.exe allowed, java only needs outbound connections allowed but javaw needs inbound and outbound connections allowed. I can't tell you how to do it because it depends on your operating system and firewall program, that part you may have to find instructions for online, sorry.
Edit:
In my firewall permissions list java appears FOUR times.
Java™ Platform SE Binary jxpiinstall.exe (outbound only)
Java™ Platform SE Binary java.exe (outbound only)
Java™ Platform SE Binary javaw.exe (inbound and outbound)
Java™ Update Scheduler jusched.exe (outbound only)
Yours should be identical if you have enabled Java update checking (jusched.exe) and have ever used the downloaded Java installer (jxpiinstall.exe) from their website rather than just getting updates from an already installed version.
This did not work for me.
But, I have now learned that if I just sit and wait for roughly 10 minutes, the game does actually work.
1) checking you have downloaded the correct version of Java
2) Make sure your video cards are decent enough to run it.
Suggestion: Have you tried playing it in your web browser? It might be to do with your firewall blocking mc from running, so right click on the icon and press 'run as administrator'.
Reply results, thanks.
(Just remember to turn it back on before going back out on the web)
If you have re-installed Java and created a rule for your firewall to allow inbound and outbound connections to javaw.exe thru it then the only thing left to check is whether your anti-virus is blocking it as a suspicious file and not notifying you of it.
Edit:
This did not work for me.
But, I have now learned that if I just sit and wait for roughly 10 minutes, the game does actually work.