What is green software

I believe many novice friends in the download time to question, what is green software? Relative to the installation version of software, Green software has the following characteristics:

1, do not do any operation of the registry (or only very few, the general friend can understand the operation, typically boot start. A few also do some temporary operations, usually automatically clears the written information before the program ends.

2, does not operate the system sensitive area, generally includes the system start zone root directory, installs the directory (Windows directory), the program directory (Programs Files), the account specialized directory.

3. Do not write to a directory other than the directory outside of itself.

4. Because the program itself does not have any effect on any file except the directory itself, there is no installation or uninstall problem at all.

5, the deletion of the program, as long as the program directory and the corresponding shortcut deleted on it (if you manually set a shortcut on the desktop or other location), as long as you do so, the program is completely clean from your computer deleted, do not leave any rubbish.

6, do not need to install, random copy, copy can be used (reinstall the operating system can also).