You use other antivirus services. Windows Defender Security Center Errors and ways to eliminate them

Already many times, I asked various questions about, for example, "where to download offline updates", "How to send a suspicious file to check in Microsoft Laboratory, etc. Moreover, users from similar issues on my blog search engines, And do not find a response. Therefore, I decided to write this article.

As an entry I want to immediately note that - high-quality, and at the same time free Antivirus. from Microsoft for home users and small businesses (up to 10 pcs), the engine is based on commercial Forefront Endpoint Protection.It has all modern antivirus technologies, such as signal check, heuristic analysis and cloud protection mechanisms.

During client installation, special components are added, allowing to build protection at the kernel level, including and detecting rootkits. Agree, only the developers of the OS can be all required toolsworking at a very low level, the rest of the vendors have to somehow get out.

To the main advantages of MSE, I would take the following characteristics:

• Free
• Undemanding to resources
• Integration S.
• Protection against Internet threats (integration with)
• Service of dynamic signatures
• Network monitoring system (protection against network exploit)

So, I will try to answer the most common questions from users:

Q: How often are Microsoft Security Essentials signature databases updated?

A: MSE anti-virus with default settings is updated once a day, at the same time, in which it has been installed. But, .

Q: Why Microsoft Security Essentials turns off Windows Defender (Windows Defender)?

A: Windows Defender part of the OS Windows Vista./ 7, and created in order to delete, put in quarantine or prevent the appearance of spy software. Microsoft Security Essentials. This is a full antivirus, which is incl. Protects from spy software. Therefore, if you installed it, the Windows defender is no longer needed.

Q: MSE is displayed in yellow, and reports that PC "presumably without protection". What does this mean, and what should I do?

A: Antivirus displays a similar message in the case when signature bases are outdated, or the system scanning has not been performed. Try updating the anti-virus databases, and hold the full system scanning.
In the case, if it did not help, then you are likely to use utilities for cleaning the system, for example sesaleer.

Q: How to update the antivirus on a computer that is not connected to the Internet?

A:Download Offline Bases can be on the official website:

Q: When copying an executable file to a computer, the antivirus cannot determine it as a malicious software, although at startup it detects a threat.

A:In Anti-Virus Settings, place the option: Scan archival files. The fact is that this executable file is actually an archive with malicious software. By default, MSE archives does not check.

Q: How to send a Microsoft to the Microsoft anti-virus laboratory?

A:You can send a check file at this address:

Q: How does the dynamic signature service work

A: If during the analysis, the file will be regarded as suspicious, (for example, trying to immediately change the protected parts of the OS), but there is no signature of this virus in the database, then a file profile is generated that is sent to analyze in Microsoft - DSS special services (Dynamic Signature Service), SpyNet and MRS (Microsoft Reputation Services). In the case when the signature is already available in the update database, but it is not downloaded, the databases are automatically updated. The signatures contain not only a part of the "body" of the virus, but also some typical behavioral scenarios that allow you to unambiguously determine the fadness of the program.

Q: How the network monitoring system works

A:The network monitoring system provides protection against network exploits that use network vulnerabilities to infect your computer. It checks the network traffic to which the computer is connected, and in advance suppresses well-known attacks. It requires Windows filtering platform (WFP) available in Windows Vista and Windows 7. The network monitoring system does not work in Windows XP.

Q: Where to seek technical assistance, in case of problems?

A:Proviterate and qualified technical assistance with Microsoft Security Essentials and other Microsoft software products will be able to you on the official resource. Microsoft Community http://answers.microsoft.com/ru-ru/protect/forum/mse

You can download Microsoft Security Essentials from the official Microsoft website.

If you still have any other questions about this antivirus - write in the comments, I will try to answer them.

Table Of Contents.

What Is the Accessibility Service Indicator?

An icon Displayed in the Firefox Tab Bar Which Communicates to Use That Firefox Accessibility Service Is Enabled and In Use.

What is Firefox Accessibility Service?

Firefox Accessibility Service IS A Technology Built Into Firefox That Provides 3RD Party Applications Running On The Sam Device The Ability to Inspect, Monitor, Visualize, and alter web page Content Hosted within Firefox.

Assistive Technologies.

Applications That Provide Access to Web Content Hosted In Firefox for Users of Physical Impairments often Enable Firefox Accessibility Service. This Is The Intended Use Of Firefox Accessibility Service.

Often Described AS "Browser Protections" Promoting Security Improvements, These Features Rarely Add Valuable Security to Firefox and Other Browsers. Most Are Poorly Designed and Poorly Tested, And Can Inadvertently Disable More Effective Security Measures Built Into Firefox. These Features Also Often Cause Problems During Upgrades to Firefox, Triggering Nasty Startup Crashes and Other Abnormalities.

Mozilla Does Not Support or Sanction This Use of Accessibility Service and Actively Works Wort Anti-Virus Vendors to Migrate Their Accessibility Service Extensions to Other Firefox Extension Mechanisms Designed for this use.

Mozilla Recommends Disabling These Anti-Virus Features If The Enable Firefox Accessibility Service.

Corporate Sign-On Assistive Technologies, Copyright Protection, Employee and Student Monitoring, And Remote Access Through Remote Desktop Technologies Often Turn Firefox Accessibility Service ON.

Niche Shareware or Freeware Applications

Firefox Accessibility Service IS Occasionally Consumed by Niche Software Applications That Interact With Your web Browser. to accomplish unique tasks or duties. Examples Include: Automatic Web Page Form Filling, Time Use Tracking, And Media Managers.

Mozilla Does Not Support or Sanction This Use of Accessibility Service and Suggests These Application Vendors Migrate Their Software to More Appriate Browser Extension Mechanisms.

Mozilla Recommends Disabling or Uninstalling These Applications If The Enable Firefox Accessibility Service.

Malware and Adware.

Firefox Accessibility Service Can Be Abused by Malware, If Present, To Monitor User Behavior or Access User Information on the Web.

If You Suspect Your Device Is Infected With Malware, Consider Purchasing and Running A Comparent Anti-Malware Software Product to Address The Issue.

What is the Impact of Having Firefox Accessibility Service Enabled?

• Firefox Accessibility Service May NegativeLy Impact Firefox Browsing Performance
• Third Party Applications May Be Monitoring Your Web Surfing Activity
• Firefox Stability May Be Adversely Affectedd

MY Accessibility Service Indicator Is Visible, What Should I DO?

A 3RD Party Application Is Accessing Your Browser Through Firefox Accessibility Service. INVESTIGATE WHAT Software Might Be Involved to Determine If You Feel This Access Is Acceptable. If You Do Not, Consider Uninstalling or Disabling The Application Accessing Firefox Accessibility Service. If This Is Not Possible, Consider Disabling Firefox Accessibility Service WITHIN Firefox.

1. ENTER about: Support In The Address Bar. The Troubleshooting Information Page Will Open.
2. Find The "Accessibility" Section and Look At The Value in The "Accessibility Instantiator" Entry.

• blank - No Client Information Was Retrieved
• An Application Path That Points To A Program That Accessed Firefox Accessibility Service.

• An Encoded Value, For Example: "NVDA" Indicating Firefox Recognized The Application. Listed Below Are Common Values \u200b\u200band A Description of the Client Detected.

Should i Disable Firefox Accessibility Service?

Assistive Technologies.

Do Not Disable Firefox Accessibility Service If You Or Someone Who Shares Your Device Accesses The Web Through Firefox USING Any Type of Physical Impairment Assistive Software.

Anti-Virus and Anti-Malware Browser Plugins

If you Determine An Anti-Virus Software Extensibility IS Enabling Firefox Accessibility Service Mozilla Recommends You Disable This 3rd Party Software Feature. If a Disable Configuration Option Is Not Available Mozilla Recommends Disabling Firefox Accessibility SERVICE from Within Firefox.

ENTERPRISE OR EDUCATIONAL MONITORING AND ACCESS

Users in Enterprise or EDUCATIONAL NETWORKS SHOLD CONTACT THEIR ADMINISTRATOR ABOUT DISABLING FIREFOX ACCESSILITY SERVICE.

When searching on a viral software computer, all the applications installed on the computer are provided on the suspects.

Viruses are distributed not only with email messages, programs and files entering a computer via the network and on external media, but also as part of screen screensavers, topics of toolbars and other Windows 10 add-ons. To protect the computer from unwanted software intervention, in Windows 10 includes a special multifunctional tool - Windows Defender, which performs the role of antivirus and overall security programs.

The Windows Defender program scans all the data streams entering the computer: downloaded files, emails, network traffic, instant messages, as well as files coming from external drives and disks. If necessary, you can also specify the Windows Defender program to view the data stored in ONEDRIVE folders. Finding obvious or potential threats, Windows defender displays a message similar to that shown in Fig. The tasks of the computer security program enters the sending of viruses and other malicious programs on quarantine before they have time to hurt the computer.

How to enable Windows Defender

If Windows appears when the Windows Defender is started "This application is turned off group Policy" As shown above, and you cannot enable Windows Defender, do the following:

1. Open the window " perform"And enter gpedit.msc.click OK

2. In the local editor window that opens group Policy Go along the way Computer configuration >> Administrative templates >> Windows components>> Endpoint Protection.

3. Click on the tab

4. In the displayed window in the upper left side, set the switch to the position Disabledand press OK

5. Restart your computer

6. After the computer reboots into Search field Enter the Word Windows Defender and click

7. In the window that opens Windows defendersclick on the button Run

How to disable Windows Defender

To disable the Windows Defender, you need to perform the first 3 points from "How to Enable Winds Defender"

1. Open the "Run" window and enter gpedit.msc. click OK
2. In the local group policy editor that opens, go along the way Computer configuration >> Administrative templates >> Windows components >> Endpoint Protection.
3. Click on the tab Turn off Endpoint Protection
4. In the displayed window in the upper left side, set the switch to the position Included and press OK

Windows Defender is turned off to check in the search field enter Windows Defender and click.We see what The application is turned off by Group Policyand the defender itself does not work

How to update Windows Defender

The Windows Defender program is updated fully automatically, which allows you to continuously scan the computer in the background and recognize even the latest threats. However, if you noticed that your computer behaves strangely, fulfill its scanning for "infection" of malicious software. To do this, you will need to run Windows Defender manually.

1. Click the Windows Protector button to the taskbar (this button is located next to the clock icon). The screen will appear on the screen built in Windows 10 antivirus.
2. In the anti-virus program window, click the Scan Now button. Verification of a computer for unwanted software is performed immediately and continues a certain time.

How viruses penetrate the computer.

Even despite the availability of a special antivirus in the operating system to avoid the risk of penetration of malware, perform the actions described in the instructions below.

• In no case, do not start and do not open the attachments into emails that you do not know anything about. Having received strange letter From a friend or colleague for work, do not be lazy at first contact the sender and make sure that it was sent not by attackers.
• It is extremely suspicious about all attachments that are started with just one click. For example, when receiving a message in which you are invited to start a friendship with a person unfamiliar to you on Facebook, do not click on it. Instead, visit the Facebook website with a browser and make sure that the user really wants to make friends with you. Than on the smaller number of links embedded in emails, you will click, the less chances to provide a malicious program access to the computer.
• Do not even try to respond to the call of one of electronic messages Enter a logbook and password to access your electronic wallets or credit cards. Seeing such a letter in mailbox, Visit the website of your bank or other financial institution and follow the necessary financial operations from there. Even if there is no particular need to make sure that with money on your accounts everything is in order. To be careful and not disclose credentials, then nothing irreparable will happen. (Password leasing operation to credit cards and accounting data is phishing, "it is described in detail in the next section.)
• Windows Defender is updated in fully automatic mode via windows services Update. This service starts with Windows 10 and continues to work until the computer is completed, so you do not have to update the Windows Defender program.
• If you prefer to use third-party antivirus tools, you can not delve into the study of the Windows Defender program. In the process of installing any other antivirus, the Windows defender program automatically stops its work. It is not necessary to abuse the installation of several antivirus programs at once, as they will be guaranteed to conflict with each other.

Reliability of the Windows Defender program

Like I. previous versions Operational microsoft systems, Windows 10 includes in its basic set of funds antivirus program Windows Defender. It is installed along with the operating system, it has high performance, automatically updated and caresses most of the malware trying to penetrate the computer. The question is whether it is better coping with tasks entrusted to it than outside software, especially distributed on a fee basis? The answer is ambiguous and depends on the criteria by which the efficiency of the program is evaluated.

For example, most independent developers anti-virus developers are better fighting with viruses than Windows Defender program. But the more carefully the antivirus crushes malware, the less fast-acting computer becomes. Some software so often displays a message about the discovery of the next danger that work on the computer becomes unbearable.

Windows Defender is ideal for users who are trained in the principles of secure work on the computer. If you know how to recognize the main threats emanating from investments in postal messages and links on dubious origin sites, it is quite aimed at the anti-virus agent built in Windows 10. If you need a system with a more serious data protection level, then be prepared to purchase it for a fee. There is no single criterion.

Again, the choice of protective equipment depends on your expectations. If you are able to purchase a serious comprehensive computer protection software, then without thinking, buy. When using the anti-virus built-in in Windows 10, you will often have to independently make a decision on blocking access to a computer of the most different software, which is not always so difficult, as it seems.

Windows 10 Defender - Comfortable Antivirus Software already built into operating system. Of course, it is still too early to compare with other more powerful software products, but some of the users goes under its protection. Of the advantages, the following can be noted: weakly loads the system, free, has a permanent updating of anti-virus databases and support for Microsoft. Suppose you have been installed another antivirus or "configuring" the top ten using specialized programs (for example, to disconnect the surveillance) you turned off Windows Defender and now want to know how to enable Windows 10 Defender if it has been disabled - Check out this article.

How to enable Windows 10 Defender if it is disabled earlier

If you used for windows settings 10 Specialized software, then when trying to run Defender Windows, get the following message:

Then use group policies editor to correct this error. This method only works for Windows 10 professional (otherwise, go to the next section of the article).

- Using Group Policy Setup

Right-click on the Start button and then "Run". In a new window, enter: gpedit.msc. In the Group Policy Editor, go to the next way: " Computer Configuration "-" Windows components "-" ENDPOINTProtection ".

Find the window to "Disable EndPointProtection" on the right side. For its settings, click the string twice. Move this parameter to the "not specified" state or "disabled"

Similarly, go along the way: "Computer Configuration" - "Windows components" - "EndPointProtection" - "Protection in Real-Time" And also transfer the "Disable Protection in Real Time" parameter to the "Disabled" or "not specified".

Now open the Windows Defender and click "Run".

- Use the operating system registry setting

This method is useful for those who have "homemade" windows version 10 or single-speaking version of the distribution. Right-click on the "Start" and select "Run". Focal Detection Power Supplies: HKEY_LOCAL_MACHINE \\ SOFTWARE \\ POLICIES \\ Microsoft \\ Windows Defender. Set the DISABLEANTISPYWARE parameter to "0" by clicking on it twice with the mouse. Open in the left half of the windows, the WindowsDefend item window will find the "Real-TimeProtection" subdator. Set the DisableRealthTimeMonitoring parameter to "0".

Reload your computer and run the Windows Defender through the Control Panel.

Attention! Check whether the Windows Defender Service is enabled (Control Panel - Administration - Services). If it is stopped all the actions described above will be unsuccessful.