Why won't dot net core 1.0 install?

Question

.NET

Updated studio from Visual Studio 2015 Update 2 to Visual Studio 2015 Update 3*.
Trying to install .NET Core 1.0 for Visual Studio and getting

vs community - free. What's wrong?
Log:

[1464:0AF4][2016-07-26T19:55:35]i101: Detected package: SetupBlocked_Uninstall, state: Present, cached: None
[1464:0AF4][2016-07-26T19:55:35]i052: Condition 'WixBundleInstalled OR NOT(NetFx45Release < 378675) OR (WixBundleAction=2)' evaluates to true.
[1464:0AF4][2016-07-26T19:55:35]i052: Condition 'WixBundleInstalled OR VS2015DevEnvExists OR VS2015WebExpressExists OR (WixBundleAction=2)' evaluates to true.
[1464:0AF4][2016-07-26T19:55:35]i052: Condition 'WixBundleInstalled OR (((VS2015CommunityUpdateVersion >= v14.0.25420) OR (VS2015ProfessionalUpdateVersion >= v14.0.25420) OR (VS2015EnterpriseUpdateVersion >= v14.0.25420)) OR (VS2015WebExpressUpdateVersion >= v14.0.25420)) OR (SKIP_VSU_CHECK=1) OR (WixBundleAction=2)' evaluates to true.
[1464:0AF4][2016-07-26T19:55:35]i052: Condition 'WixBundleInstalled OR NOT(((VS2015CommunityUpdateVersion <> VS2015UpdateVersion) AND (VS2015CommunityExists) AND (VS2015UpdateVersionExists)) OR ((VS2015ProfessionalUpdateVersion <> VS2015UpdateVersion) AND (VS2015ProfessionalExists) AND (VS2015UpdateVersionExists)) OR ((VS2015EnterpriseUpdateVersion <> VS2015UpdateVersion) AND (VS2015EnterpriseExists) AND (VS2015UpdateVersionExists)) OR ((VS2015WebExpressUpdateVersion <> VS2015UpdateVersion) AND (VS2015WebExpressExists) AND (VS2015UpdateVersionExists))) OR (SKIP_VSU_CHECK=1) OR (WixBundleAction=2)' evaluates to false.
[1464:0AF4][2016-07-26T19:55:35]e000: Setup has detected that Visual Studio 2015 Update 3 may not be completely installed. Please repair Visual Studio 2015 Update 3, then install this product again.
[1464:0AF4][2016-07-26T19:55:35]e000: Error 0x81f40001: Bundle condition evaluated to false: WixBundleInstalled OR NOT(((VS2015CommunityUpdateVersion <> VS2015UpdateVersion) AND (VS2015CommunityExists) AND (VS2015UpdateVersionExists)) OR ((VS2015ProfessionalUpdateVersion <> VS2015UpdateVersion) AND (VS2015ProfessionalExists) AND (VS2015UpdateVersionExists)) OR ((VS2015EnterpriseUpdateVersion <> VS2015UpdateVersion) AND (VS2015EnterpriseExists) AND (VS2015UpdateVersionExists)) OR ((VS2015WebExpressUpdateVersion <> VS2015UpdateVersion) AND (VS2015WebExpressExists) AND (VS2015UpdateVersionExists))) OR (SKIP_VSU_CHECK=1) OR (WixBundleAction=2)
[1464:0AF4][2016-07-26T19:55:35]i199: Detect complete, result: 0x0

Answer 1

It turns out this is a common problem.
Run installation with skip check flag
About the issue:
https://visualstudiogallery.msdn.microsoft.com/c94...