While the cause of the error code 577 is unknown, some reports indicate that a malicious application has been found. Whether you are experiencing the error on your computer, or you are seeing it on your own device, the quick solution is to remove the application and the associated hardware.

Every Windows 10 computer has a file called “defender.exe” in the Windows\System32 folder. This executable file is responsible for maintaining the computer’s virus protection. It’s also responsible for reporting any issues that pop up. If this file is missing, then your computer is not protected from viruses, and you may have to deal with a Windows Defender error 577.

Windows 10 is the latest version of Microsoft’s operating system, and as such, there are a number of new features and changes that users will need to get acquainted with. One of the more notable changes is Defender, a built-in security tool that has received several upgrades and improvements since the operating system first launched.

If you are unable to edit the Windows 10 registry, read this handy guide and find the fastest solutions to this problem.

3. Complete removal of third-party antivirus programs

Windows Defender does not work with third-party antivirus programs. Therefore, you cannot install another antivirus program and run Windows Defender at the same time. So, if you’re really determined not to install a third-party antivirus program, as we suggested in the first step, and stick with Windows Defender, you’ll need to uninstall the antivirus program completely. Sometimes it is not enough to uninstall the antivirus, you must also delete all files and registry entries associated with the antivirus program. You can do this manually, but it’s not the safest or easiest process. Therefore, we recommend that you download a cleanup tool for your antivirus software. For Norton users, we have prepared a special guide on how to completely remove it from your computer. There is a similar guide for McAffe users, so try to make the best of it and remove all leftovers. If you are using an antivirus program and want to remove it completely from your PC, check out this list of the best uninstallers you can use right now. Almost all antivirus companies offer these tools for download. So make sure you download this program for your antivirus. Users have reported that the antivirus tools Avast, Norton and McAfee were the cause of this problem. After deleting all files linked to your antivirus, the problem is completely solved. Besides your antivirus software, tools like SpyBot Search and Destroy, Comodo Antivirus, Constant Protection, and IObit Malware Fighter can also cause this error, so make sure you remove them from your PC. And if you want to be absolutely sure that your PC is clean, follow this expert guide on how to remove residual programs in a few easy steps.

4. Activate Windows Defender from Notification Center

According to users, this problem can be easily solved by enabling Windows Defender through the Message Center. To do this, go to the notification center in the bottom right corner of your screen and you’ll see a notification with a small checkbox next to it. Click on it and Windows Defender should activate.

5. Modification of security clearance in theRegister

  1. Open the registry editor as described in solution 2.
  2. Go to the next button in the right pane: HKEY_LOCAL_MACHINE/SOFTWARE/Microsoft/Windows Defender
  3. Right-click this button and select Permissions from the menu.
  4. Press the Advanced button.
  5. Click the Add button.
  6. Now click Select Director.
  7. In the Enter the name of the object you want to select field, type the user’s name and click Check Names.
  8. If the user name is correct, click OK to save the changes.
  9. You will see your username in the Director section. Under Basic Permissions, select Full Control and click OK to save the changes.
  10. Click the Enable Legacy button.
  11. Click Apply and OK to save your changes.

Sometimes this problem can occur due to security permissions in the registry. To resolve error 577, you need to change the security permissions for some registry keys. Changes in registration may cause problems with your system. We therefore recommend that you save the recording before continuing. Follow the steps above to change the security permissions. Even if you have problems with the registry, you can fix them quickly with this step-by-step guide.

6. Restart Security Center and Windows Defender

  1. Press Windows key + R and type services.msc. Press Enter or OK.
  2. Find the Security Center service, right-click on it and select Restart.

You can also restart this service by right-clicking the Security Center service and selecting Stop from the menu. Then right-click on the service again and select Run from the menu. According to users, you can fix Windows Defender error 577 by restarting the Security Center service. This error can occur after uninstalling an antivirus program, and users have reported this issue after uninstalling the McAfee LiveSafe program. Follow the steps above to restart the Security Center service. Try doing the same thing to see if the problem persists.

7. Creating a New User Account

  1. Press Windows + I to open the Settings application.
  2. Now go to the Accounts section.
  3. Select Family and others and click Add someone else to this PC.
  4. Now click, I don’t have this person’s registration details.
  5. You will be asked to enter your Microsoft credentials. Select Add users without a Microsoft account.
  6. Enter the desired name and click Next to continue.

Sometimes this error can occur because your user account is corrupt. In this case, you must create a new user account by following the steps above. After creating a new user account, switch and check if the problem is resolved. If the problem persists, move your personal files to the new account and use it instead of your main account. It’s not the most practical solution, but several users have reported that it works for them, so give it a try. If Windows doesn’t allow you to add a new user account, follow the simple steps in our step-by-step guide and create as many accounts as you want. Windows Defender service error 577 can be problematic, but you should be able to resolve it with one of our solutions. If you fail to resolve this issue, consider using third-party antivirus software. Browse our selection of the best unlimited antivirus programs and find the right solution for your PC. If you have any other questions or suggestions, please leave them in the comments section below.No, it’s not an error message, it’s a serious warning that might be bringing you down. I’ve been hearing about this problem a lot lately and thought it was the same old Windows Defender error 577 that keeps showing up on Windows 10 and previous versions of Windows. So I actually decided to check my Windows Defender settings to see what was causing the message. I must say that it’s not the same error reported before, but it’s still pretty annoying.. Read more about symantec endpoint protection wsc service error 577 and let us know what you think.

Frequently Asked Questions

How do I fix error code 577?

Windows Defender Error 577 is a nasty piece of malware that attacks Windows 10 machines by using the Windows Defender service. It will prevent Windows Defender AV from scanning your computer, and will block Windows Defender updates. The malware also uses the Windows Defender service to send information about you to a remote server. Error code 577 is a dreaded bug that plagues many Windows 10 users. It can appear in different ways and cause major headaches for many users, so we’ve put together this guide to help you fix the error.

How do I fix Windows Defender in Windows 10?

There are many different Windows 10 errors that you may encounter, but one of the most common is a Defender error. This occurs when the Windows Defender software fails to stop a threat. This error is easy to fix, and with a little knowledge, you can fix it yourself. Windows Defender error 577 is a common issue with Windows 10, and it’s usually caused by a system file that’s not properly loaded. According to Microsoft, the issue is related to a configuration setting in Windows 10 that can cause Windows Defender to run in the background on some devices. However, the error can also be caused by a third-party app.

How do I unblock Windows Defender in Windows 10?

Windows 10 is the latest iteration of Microsoft’s operating system. It’s a major leap forward for Windows, bringing with it new features, a new look and design, and a new start menu (Microsoft Edge). While some of its features may seem familiar to older versions of Windows, there are some major changes that aren’t immediately apparent. For example, Windows Defender, the antivirus software that comes with Windows 10, is now called Windows Defender Security Center. There is a common troubleshooting problem with Windows 10, especially on the older devices: Windows Defender error 577. This error comes up when the Windows Defender service is not running on your PC. The reason why this happens is that Windows 10 silently starts the service and doesn’t offer an option to turn it off.

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