We have some worksation\laptop that where offline fot months, but before to put online they asked to perform some offline updates, the Antivirus which i did and the OS as best as i can with the latest security patches released by microsoft.
I tried to use a famous tools WSUSOFFLINE to download patches but seems that does not download any patches (except for the static ones enumerated in a file). do you have never used WSUS OFFLINE?
There is any other method that permit to download the Security patches? without downloading one by one from Windows Catalog?