From WinReducerEX81.log:
***** 4/20/2016 10:31:31 AM - SESSION OPENED *****
ERROR : 4/20/2016 10:42:00 AM ==> Net Framework 4.5 - NDP46-KB2901907-x86-x64-AllOS-PTG.exe = Download error detected ... This update has not been downloaded
***** 4/20/2016 10:43:36 AM - SESSION CLOSED *****
***** 4/20/2016 10:44:39 AM - SESSION OPENED *****
ERROR : 4/20/2016 10:45:37 AM ==> Net Framework 4.5 - NDP46-KB2901907-x86-x64-AllOS-PTG.exe = Download error detected ... This update has not been downloaded
***** 4/20/2016 10:47:38 AM - SESSION CLOSED *****
***** 4/20/2016 10:31:31 AM - SESSION OPENED *****
ERROR : 4/20/2016 10:42:00 AM ==> Net Framework 4.5 - NDP46-KB2901907-x86-x64-AllOS-PTG.exe = Download error detected ... This update has not been downloaded
***** 4/20/2016 10:43:36 AM - SESSION CLOSED *****
***** 4/20/2016 10:44:39 AM - SESSION OPENED *****
ERROR : 4/20/2016 10:45:37 AM ==> Net Framework 4.5 - NDP46-KB2901907-x86-x64-AllOS-PTG.exe = Download error detected ... This update has not been downloaded
***** 4/20/2016 10:47:38 AM - SESSION CLOSED *****