Windows 7 will get activated automatically but you will face the time where you will have to activate it manually. By activating the windows it will help in verifying that the copy of the windows that you are using is only for the specific computer hardware which will help in preventing piracy.

So when you upgrading the computer or you are not being able to install the windows automatically without the internet then you will have to activate the copy manually. The steps that will help you to get started with the activation of Windows 7 are discussed below.

Over the internet:

1. You will have to go to the homepage of your computer screen and from there you will have to right click on the computer for selecting the properties. Now you will be able to see a window of system properties.
2. The software will try to detect any active connection of internet. If it can detect any connection, then it will activate the Windows online. Make sure that your machine is connected to a stable internet connection for the completion of the activation process.
3. For activating the copy of the authentic 25 character windows 7 product keys. You can find the product key of your computer on the laptop or in the manual of your Windows 7. If you have previously downloaded this online, then it will be in the confirmation email. If you are unable to find the product key then you will have to buy a new product key.
4. It will take a few moments for the activation process to complete. After it is completed it will display the confirmation message. In order to check whether the activation has completed or not you will have to open the system properties once again. On the bottom side of the Windows, a message will pop-up where you can see that the Windows is activated now.

By Modem:

1. Right click on the homepage of a computer and check the properties option. From there you will have to select the window of system properties.
2. You will have to click on the option of activating windows Now which will be available on the window’s bottom side.
3. From there you will have to click on the other ways of activating the windows.
4. You will have to provide the unique key of 25 characters for activating the copy of the windows. You can find this product key on the bottom side of your laptop or in the manual of Windows 7. If you have downloaded it previously, then it will be in the confirmation email or else you will have to purchase another product key.
5. There you will have to select the option of Use my modem to connect directly to the activation service. Now you will have to provide the administration password and then click ok.
6. On clicking the Next the modem will get turned on and it will try to connect to any activation service for activating the device. After the completion, the popup will be shown in the window.

So these are the efficient way of activating Windows 7. Make sure following all the instructions properly.