Since standard Windows updates were stuck on a laptop (Windows 7 64-bit), I used wsusoffline.
After some hours, all seems OK. From the install log of wsusoffline I can read lines like
27/05/2017 19:30:21,72 - Info: Installed ..\w61-x64\glb\windows6.1-kb2840631-x64_022ec000034f19b7ce059c0f5175bb921b53badc.cab
But the point is that I can't see the knowledge base references (for example, kb2840631) in the control panel history.
Is that normal? How can I double check it has been installed indeed?