I am a computer repair professional which uses this software to repair other computers from various countries.
This is a best software to control another computer within your Windows. The latest version 10.0. You can keep your own password for accessing your computer from any other place. You can keep a computer very secure by keeping a long password. You can also shutdown, reboot and lock the system via TeamViewer. when you connect to the TeamViewer to the other computer the desktop screen will become black so your access speed is more. Teamviwer will only use 6 KB per second, for smooth Access on another computer; so it is very useful on slow computers and slow Internet.
You can login on TeamViewer and store the list of computers that you access and you can store there password also. TeamViewer is the best software that you use blindly.
Another person cannot use your computer without your notifying you. So the hackers cannot hack your computer via TeamViewer. You can use TeamViewer to control two or more systems if you buy the original software with company licence.
For normal users like me, if you have to control only one system then you have the free licence and you can use it freely without any time limitation.