Note that: As alternative, you can try out KMSpico activator. If sometimes removewat doesnot work, so you can activate windows.
1- How much time does it take to install, and everything is to be done?
It is very straightforward and easy process you just don't need to worry and download and install run the software and wait for not more than 5 minutes, and everything is done, your Windows has been activated for lifetime without any registration keys or anything other which is time-consuming
2- Which Windows does it support?
It supports windows vista, win 8, win 7. It is made by exceptional technologists that it can even run in 32 and 64 bit. Moreover, it is made complete virus-free.
3- Does it require any registration keys or something like that?
No nothing at all is required after installing the software you just have to run the software and forget about all the tensions that you have faced in the past, and your Window will be activated for the lifetime.