Il s'avère que that vous pouvez stop the windows update service manually, si vous avez Administrator privileges.
Open a cmd prompt as Admin (clic droit the .exe et choisissez Run as Administrator), and type
net stop wuauserv
Vous pouvez start it again with
net start wuauserv
As suggested by @arolpx, I had a look and stopping the Background Intelligent Transfer Services (BITS) manually will ensure that Windows Update cannot transfer anything.
From the linked source:
If the service is disabled, then any applications that depend on BITS,
such as Windows Update or MSN Explorer, will be unable to
automatically download programs and other information.
Sources:
