For various reasons , the workstation on which I have to install UDK , must not be connected to the Internet .
The configuration of my study is the following :
- pc1 : Pc x web browsing, email,
FTP… download software updates .
- pc2 : Pc x demo setup software, test
websites offline.
- pc3 : Wk x NLE, DAW, CG , DCE .
( three PCs are not networked . the passage of the files shall be effected with use of flash - usb hd or ext . )
If I were to buy UDK would be installed on pc3 , that will never be connected to the Internet .
Should I download UDK on pc1 , perform a test on pc2 , and should i decide if continue to using it , should I install it on pc3 . So it will be for each software .
Should you decide to use UDK 4 , with monthly payment plan , how should I do?
Hi robertomelucci,
First, please be aware that UE4 (Unreal Engine 4) is not the same as UDK. UDK was only for the Unreal Engine 3. And there is no UDK for UE4. 
UE4 is certainly intended to run on a system with internet connectivity. The binary version specifically is downloaded exclusively through our UE Launcher which requires an internet connection. Additionally, the Launcher allows you access to downloadable sample projects, and the Editor uses the connection to link you to documentation and submit crash reports if crashes occur.
However, if you must work with UE4 on a system with no internet connection, then I would most likely recommend that you do not use the binary release from the Launcher, and instead work directly with the UE4 source code. You will have to download all necessary files from GitHub (information here and here), but then you can copy them to your pc3, and compile the code in Visual Studio to being working with the Editor.
Cheers