The Action Center in Windows 7 & 8.1 is called Security and Maintenance in Windows 10
The Security Center in Windows XP and Windows Vista has become the Action Center in Windows 7 & 8.1, where it covers maintenance as well as security. There is plenty of information on it on the web, such as customising it and disabling it, that can be found by entering the search query action center windows 7 (or 8.1) in a search engine. Here is an introduction to it on Microsoft’s website:
What is Action Center? – “Action Center is a central place to view alerts and take actions that can help keep Windows 7 running smoothly.” –
http://windows.microsoft.com/en-US/windows7/What-is-Action-Center
How to Use the Action Center in Windows 8.1 –
http://www.dummies.com/how-to/content/how-to-use-the-action-center-in-windows-81.html
Where is Action Center in Windows 10?
In Windows 10, the new action center is where you’ll find app notifications and quick actions. But the old action center is still here—it’s been renamed Security and Maintenance. And it’s still where you go to change your security settings.
In the search box on the taskbar, enter security and maintenance and then select Security and Maintenance.
Tips For Using Action Center [Security & Maintenance] in Windows 10 –
http://www.tomshardware.co.uk/faq/id-2569624/tips-action-center-windows.html
Windows 7 & 8.1 & 10: User Account Control (UAC)
If you are a user of Windows 7/ 8.1/10, you’ll soon notice that those versions of Windows require permission to install software, and, if you have a utility such as the free CCleaner installed and set to clean the system at startup, Windows Win7/8.1 asks your permission to allow it to perform its cleanup during startup. The User Account Control is responsible for those security measures.
User Account Control (UAC) improves the security of the system it is running on by limiting software to standard user privileges until an increase in privilege level is authorised by a user with administrator privileges. In this way, only applications that the user trusts receive higher privileges, and spyware and viruses are prevented from installing themselves. In short, a user account can have administrator privileges assigned to it, but software that the user runs do not also have those privileges unless they are approved beforehand, or the user authorises it to have those higher privileges. Application software that has been installed will run without interference, but if it attempts to make unauthorised changes to the system, Windows Win7/8.1 asks the user for permission.
If you are logged into a Windows Win7/8.1/10 computer as administrator, and you wish to make a configuration change, a message pops up from the UAC asking ‘If you started this action, continue’. You must click on that ‘Continue’ button before Windows completes the configuration.
You can turn UAC off if you find its nagging annoying, but it is advisable to tolerate it and to learn how to distinguish between what is safe and what is potentially dangerous. What you should never do is just click the Continue button without finding out which application brought the UAC into action, because that is how viruses and spyware can be installed.
User Account Control – http://en.wikipedia.org/wiki/User_Account_Control
You can find many other pages by entering windows 7 (or 8.1 or higher versions) user account control as the search queries in a search engine. If you want to turn UAC off, enter this search query adding the version of Windows that you are using: turn off user account control in windows.