Files remain blocked after unblocking them manually - Security Center 5.10.3.0

Use streams.exe to unblock Security Center installation package files that remain blocked after manual intervention.

1. Download streams.exe from https://technet.microsoft.com/en-ca/sysinternals/bb897440.aspx.
2. Open a command prompt window.
3. Enter streams.exe -d <filename>, where <filename> is the name of the file that needs to be unblocked.