I checked the file ntbtlog, there are no recent information in it.
did some more actions :
1) I renamed the file
2) I added in boot.ini a command to force the creation of ntbtlog.txt (sos...)
Result unchanged : no ntbtlog file created.
Reason is probably explained here : http://support.micro...kb/275735/en-us
or also here : http://superuser.com...tbtlog-txt-file
So it seems that it is written on the registry but that something prevents to write the file itself afterwards...
I also join some other logs that might be interesting :
- WindowsUpdate.log => at the end, we find this :
2013-10-13 22:58:34:765 1048 ac4 AU FATAL: CAUClient::Launch failed, error = 0x800704DD
2013-10-13 23:00:27:437 1048 ac4 AU ########### AU: Uninitializing Automatic Updates ###########
- Wiadebug.log
Jo