Error installing Windows SDK 10.0.14393
<p>installation of VS 2015 Update 3 reported an error installing Windows SDK 10.0.14393.</p>

<p>i found some forum entries about that issue, tipping for separat installation of the SDK. i did so. result:</p>

<blockquote>
  <p>Blockquote
  Installation did not complete successfully.</p>
</blockquote>

<p>Log-File shows that the rollback started after </p>

<p>CAQuietExec:  Creating UnionWinMD using mdmerge tool
CAQuietExec:  MDMerge failed. Please check See MDMerge tool logs at C:\Users\Lothar\AppData\Local\Temp\UnionWinmdWorkingFolder\Logs\27555-MDMerge.log and C:\Users\Lothar\AppData\Local\Temp\UnionWinmdWorkingFolder\Logs\27555-MDMerge.err
CAQuietExec:  Error 0x80070002: Command line returned an error.
CAQuietExec:  Error 0x80070002: CAQuietExec Failed
CustomAction GenUnionWinMD returned actual error code 1603 (note this may not be 100% accurate if translation happened inside sandbox)
MSI (s) (74:50) [11:34:03:800]: Note: 1: 2265 2:  3: -2147287035 </p>

<p>Any suggestions?</p>