Just then, the bell above the shop door chimed. Mr. Sterling stormed in, his face pale, sweat beading on his forehead despite the cold rain outside.

: Does not leave behind temporary files or registry keys on the host machine.

The portable version does not require installation. Simply extract the contents of the "Nitro.Pro.Enterprise.x64.Portable.14.34.2.0.zip" file to a folder on your computer or portable storage device, and run the executable file.