This article contains information about the Windows Defender antivirus built into Windows 10 and how to configure it.
Here you can find a detailed description, ways to enable and disable this system tool, as well as see the results of comparing the “defender” with third-party antivirus programs.
Use the content to quickly find your question about the Defender.
What is Windows Defender. His possibilities
Windows Defender (Eng. Windows Defender) is an anti-virus product of Microsoft, which was created specifically to find and eliminate malicious code on the Windows OS. Windows Defender slightly different from the usual freeware user programs that simply scan files for viruses.
It consists of a whole set of special modules that constantly monitor the status of the system and its individual components. The capabilities of this antivirus tool are as follows:
- Virus and Threat Protection, which helps to detect malicious code in programs launched with the OS, as well as monitor system services and tools responsible for registering software;
- Device Health Support, which monitors the relevance of updates, hardware drivers. This component also helps optimize startup / shutdown of the operating system and memory usage, increasing the overall performance of Windows in many tasks;
- Firewall and Network Security, eliminating network problems and protecting your computer from outside attacks;
- Manage apps and browser Allows you to protect your device from “exploits” and other malware when using the Internet.
Exploit (eng. exploit. to exploit) is one of the types of attacks designed to exploit vulnerabilities in programs (including system ones) available on the victim’s computer to replenish malicious code that is designed to infect the computer with a virus or execute arbitrary commands, as well as changes in files and system parameters without the knowledge of the user. Each of the functions of the “defender” at any time can be configured using the tool: “Windows Defender Security Center”. This section is located in parameters computer (shown in the figure below).
Figure 1. Open the Windows Defender settings.
Windows Defender It is initially installed in Windows 10 and begins to protect the user immediately after the computer is first turned on.
However, this built-in protection has certain disadvantages and is sometimes inferior to many third-party antiviruses.
Some flaws in the operation of system antivirus
Unfortunately, the built-in Windows defender It does not fully guarantee protection against malware.
Windows Defender It has a number of drawbacks, but in general, with each update, the operation of the antivirus only improves. The main problems will be listed below. Windows Defender, that prevent the full security of your computer:
- Weak protection againstphishing (one of the types of Internet fraud, the purpose of which is to obtain important user data: logins, passwords, card numbers, by creating copies of popular sites);
- The mediocre function of blocking sites containing malware. Be careful when visiting suspicious web pages.
For active Internet users, such a security tool is likely to seem insufficient. Despite this, algorithms for scanning in real time and searching for malicious code in files Windows Defender pretty good.
In the next chapter, you can evaluate the performance of Microsoft software protection in comparison with third-party antiviruses.
Do I need Windows Defender? Comparison with popular antiviruses
In this chapter, three antiviruses, including Windows Defender, will have a very difficult task. to scan an archive with a collection of a large number of viruses. Attention!
In no case do not repeat the tests that you see below in order to avoid infection of your system with virus programs.
The further experiment was conducted on a separate disk space in a virtual machine environment with Windows 10 installed and has little in common with actual computer operating conditions.
Despite this, such a test puts antivirus software in Stressful situation and shows the level of protection. The test will be performed on the following antiviruses:
- Built in system Windows Defender;
- Shareware Eset Nod 32;
- Totally free Avast.
During the experiment, an archive consisting exclusively of viruses will be scanned. The number of threats found will reflect the quality of the program according to the principle: “more is better.”
Links to virus collection for safety reasons left will not!
Antivirus Testing Process: Windows Defender, NOD 32, Avast
For greater objectivity, all anti-virus programs have been updated manually.
It should also be mentioned that all protective equipment works separately from each other.
The test was conducted 11/03/2017, and in the figure below you can see information about the relevance of updates for each of the antiviruses (respectively, Windows Defender, Eset Nod 32 and Avast)
Video: Where is Built-in Anti-Virus in Windows 10?
Now start the archive scan using its context menu, called with the right mouse button, and select forced scanning a file for viruses.
Each program was scanned by 3798 identical elements that are malicious.
Number of threats found:
- Windows Defender discovered 3674 a virus;
- Eset Nod 32 discovered 3622 a virus;
- Avast discovered 3352 the virus.
Figure 3. We look at the number of threats found.
Of course, this testing is not a real indicator of the level of protection of your computer. Third-party antiviruses, for example, block suspicious sites much better, preventing external threats.
In the next chapter, you can learn how to disable Windows Defender if you need to install another security program.
Disabling Windows Defender for a while (before rebooting)
The information in this chapter is exclusively for users on whose computer not installed no third-party security software.
The installation of any antivirus entails an automatic shutdown advocate, therefore, no further action is required. You can temporarily disable system antivirus in the Windows Defender Security Center window.
To do this, you must:
- Click on menu “Start” right click → open “Parameters”;
- Enter a request: “defender” in the search bar of the opened window → select Windows Defender Security Center;
- Next in the tab Virus and Threat Protection (icon with a shield) click on “Settings for protection against viruses and other threats”;
Now in the window that appears, you can disable any of the security features.
Figure 4. Configuring real-time protection.
Anti-virus protection will be automatically restored after a reboot to ensure computer security.
If you need finally disable Windows Defender. read the instructions below.
Turn off Windows Defender completely
Removing an icon from the system tray (notification area)
For displaying the system antivirus icon, a file called “Windows Defender notification icon”.
This program can be disabled in the settings startup without any consequences.
Run Task Manager (using the Ctrl Alt Delete combination) and do the following:
- Open tab “Startup”;
- Click on the line “Windows Defender notification icon” right click.> select action Disable.
Figure 7. Disable the start of the process with the launch of the OS.
The changes will take effect after the computer restarts.
Icon Windows Defender will not be shown in the notification area until you include the corresponding program back into the startup OS.
Turn on and configure Windows Defender
Default, Windows Defender configured for maximum system protection. However, sometimes when you try to run this antivirus program, you may see a message about disabling the application local group policy. Any defender settings are also inactive, although third-party antiviruses are not installed on the computer. There are two ways to solve this problem:
- Editing Local Group Policy (Windows 10 Professional only)
- Registry Editing followed by a change in the value of starting the system security service;
If Windows 10 Home is installed on your computer, go directly to the chapter: “Enabling Windows Defender through the registry editor”.
Enabling Windows Defender by editing local group policy
note. This method only works on professional versions of the system (Professional), since local group policy is simply not available in Windows 10 Home. To start Windows Defender, you must:
- Open menu “Search” (next to the Start icon) → enter the query: “Gpedit.msc” → start the corresponding program by clicking the left mouse button;
- In the opened window of the local group policy go to the section Windows Components \ Endpoint Protection (or “Windows Defender Antivirus Program);
- Find parameter Turn Off Endpoint Protection and watch it state (if you see the value “Enabled”, double-click on the corresponding line with the left mouse button);
- Set value Disabled→ “OK”.
Figure 8. Turn on Endpoint Protection.
In most cases, the problem will be resolved, and you will be able to start the service Windows Defender manually.
Enabling Windows Defender through Registry Editor
The way to enable system protection through the registry editor is the opposite of how to disable it.
Check out the subtitle: “Complete shutdown of Windows Defender”, follow all the instructions.
It is only necessary to change the value “1” on the “0” and restart the computer.
Next, you can seamlessly enable Windows Defender using the appropriate option in parameters OS
Windows Defender Exception Settings
If you are sure of the security of files in which the system antivirus sees a threat for any reason, add them to Windows Defender exceptions.
You can exclude not only a single folder or file, but also:
- Any running process;
- A separate file type with the selected extension (.exe, msi, etc.).
To add any of these exceptions, you need:
- Open Windows Defender Security Center, which is in the system search;
- Click on item “Protection against viruses and threats”;
- Find and choose “Adding and Removing Exceptions”;
- Press the button with a sign “” →add the exception you are interested in.
Figure 9. Add the necessary exceptions.
Now Windows Defender will ignore the file, folder, extension or process that you specified. Note!
The exception applies to all subfolders located in a directory that has been deleted from the scanning algorithm.
What to do if Windows Defender does not turn on
Sometimes the “protector” does not start even in the absence of third-party antiviruses. A detailed solution to this problem is indicated in the following subheadings:
- “Enabling Windows Defender by editing the local group policy”;
- “Enabling Windows Defender through the registry editor.”
Careful familiarization with these instructions will allow you to get rid of many failures in the work of this software.
Next, we will analyze the solution. “Errors 577”, which may occur when starting the defender after removing third-party antiviruses.
A simple method to fix error 577
Basically, this error occurs after removing third-party antivirus software.