Minecraft won't open. i uninstalled and reinstalled java and deleted all my minecraft files. i then tried reinstalling them and i keep getting this message Bootstrap (v5) Current time is Dec 22, 2013 2:42:31 PM System.getProperty('os.name') == 'Windows 8' System.getProperty('os.version') == '6.2' System.getProperty('os.arch') == 'x86' System.getProperty('java.version') == '1.7.0_45' System.getProperty('java.vendor') == 'Oracle Corporation' System.getProperty('sun.arch.data.model') == '32' Downloading: https://s3.amazonaws.com/Minecraft.Download/launcher/launcher.pack.lzma Exception: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target Recognized exception: the likely cause is a set of broken/missing root-certificates. Check your java install and perhaps reinstall it. Downloading: https://s3.amazonaws.com/Minecraft.Download/launcher/launcher.pack.lzma (try 2/10) Exception: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target Recognized exception: the likely cause is a set of broken/missing root-certificates. Check your java install and perhaps reinstall it. Downloading: https://s3.amazonaws.com/Minecraft.Download/launcher/launcher.pack.lzma (try 3/10) Exception: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target Recognized exception: the likely cause is a set of broken/missing root-certificates. Check your java install and perhaps reinstall it. Downloading: https://s3.amazonaws.com/Minecraft.Download/launcher/launcher.pack.lzma (try 4/10) Exception: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target Recognized exception: the likely cause is a set of broken/missing root-certificates. Check your java install and perhaps reinstall it. Downloading: https://s3.amazonaws.com/Minecraft.Download/launcher/launcher.pack.lzma (try 5/10) Exception: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target Recognized exception: the likely cause is a set of broken/missing root-certificates. Check your java install and perhaps reinstall it. Downloading: https://s3.amazonaws.com/Minecraft.Download/launcher/launcher.pack.lzma (try 6/10) Exception: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target Recognized exception: the likely cause is a set of broken/missing root-certificates. Check your java install and perhaps reinstall it. Downloading: https://s3.amazonaws.com/Minecraft.Download/launcher/launcher.pack.lzma (try 7/10) Exception: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target Recognized exception: the likely cause is a set of broken/missing root-certificates. Check your java install and perhaps reinstall it. Downloading: https://s3.amazonaws.com/Minecraft.Download/launcher/launcher.pack.lzma (try 8/10) Exception: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target Recognized exception: the likely cause is a set of broken/missing root-certificates. Check your java install and perhaps reinstall it. Downloading: https://s3.amazonaws.com/Minecraft.Download/launcher/launcher.pack.lzma (try 9/10) Exception: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target Recognized exception: the likely cause is a set of broken/missing root-certificates. Check your java install and perhaps reinstall it. Downloading: https://s3.amazonaws.com/Minecraft.Download/launcher/launcher.pack.lzma (try 10/10) Exception: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target Recognized exception: the likely cause is a set of broken/missing root-certificates. Check your java install and perhaps reinstall it. Unable to download remote file. Check your internet connection/proxy settings. FATAL ERROR: net.minecraft.bootstrap.FatalBootstrapError: Unable to download while being forced at net.minecraft.bootstrap.Bootstrap.execute(Bootstrap.java:95) at net.minecraft.bootstrap.Bootstrap.main(Bootstrap.java:381) Please fix the error and restart. There is a lot of smart people on here. Help ?
press the windows button and search java and click configure java. Check your security settings and if it's set to very high change it to high. You probably blocked java on public networks.