Upon attempted install Smart SDR v2.3.9\64 bit Windows 10 reports "error - source is corrupted" the install stalls when trying to install wdreg.exe. Windows Defender and all anti-virus is suspended. Unable to install the new version until this install is fixed. Downloaded three times from the Flex Downloads section and no joy. Previous versions installed without a problem. Even tried uninstalling the previous version 2.3.7 and no joy.