SSDT installation issue (Failed to execute EXE package.)

The answer from Nick is very helpful, but I still failed at SSDT-Setup-ENU.exe /repair with the same error Error 0x800703e9: Failed to execute EXE package..

Then I tried it with a very straightforward way: (Disable UserAccountControl first)

1. copy SSDT-Setup-ENU.exe to c:\temp and execute SSDT-Setup-ENU.exe /layout to download a local copy of the bundle.
2. open C:\temp\redist and double click NDP461-KB3102438-Web.exe
3. open C:\temp\payload and double click vsta_setup.exe
4. repeat to install others…