Google’s servers offer some of the fastest download speeds available without the throttling found on other file-sharing sites.
That being said, if you're still looking to download ETS2 1.39, here's a general outline of the steps: Ets2 1.39 Download Google Drive
: Never download or run a .exe file that claims to be a mod or the game itself; legitimate mods are almost always .scs , .zip , or .7z . Google’s servers offer some of the fastest download
If it is a portable version, simply run the eurotrucks2.exe located in the bin/win_x64 folder. legitimate mods are almost always .scs