Fix Virus & threat protection Not Opening or Working on Windows 11 & 10

Are you also the one who opens up Virus & Threat protection and receives the following error messages as shown below:

Unexpected error. Sorry, we ran into a problem. Please try again.

Page not available

Your IT administrator has limited access to some areas of this app, and the item you tried to access is not available. Contact IT helpdesk for more information.

Could not load file or assembly ‘Microsoft.VisualBasic, Version =,
culture=neutral, Publickeyloken=bustbr/111d50a3a or one of its dependencies. Invalid pointer (Exception from HRESULT: 0x80004003 (E_POINTER))

Many users have also raised this query on the Official Microsoft forum. One such user said:

Hello, when i type in search bar for virus and threat protection it gives me a thing to press on but after says your IT administrator has limited Access. I have not downloaded any third-party anitivrius and also I hate that this anitmalware executable is using 20% of my ram…How to I fix this
Rudolfs Aboms

Why Virus & Threat Protection is Not Opening or Working?

Virus and threat protection is one of the most important aspects of a Windows operating system. It not only helps in keeping your system secure from viruses but is also helpful in downloading the latest security updates rolled out by Microsoft.

Considering its importance, have you ever wondered what will happen if this particular section becomes inaccessible? The answer is quite simple, you won’t be able to keep your system secure from intruders. Unfortunately, many users have reported Virus and threat protection are not working on Windows 11 and Windows 10 as you have seen above.

There could be the following reason why this is happening:

  • Conflict with third-party antivirus installed on the PC
  • Corrupted Registry
  • System Infected with Malware
  • Corrupted system files
  • Bug in the current version of Windows 11 and Windows 10

How to fix Virus & Threat Protection is missing and not working?

To solve the issue follow the following fixes shown below:

1. Run a malware scan using other Antivirus Software

In many cases, it was reported that malware or virus was causing issues in launching the virus and threat protection. However, since the Windows Defender is not working, you must use another antivirus program to run for Malware scan.

Pick one of the best third-party antivirus software for Windows 11 and install it. After downloading the program, run a malware scan to find out and eliminate/quarantine any viruses present on the system.

To ensure that there is nothing trying to stop your Virus and Threat protection from working, a malware scan is essential. For a fast and advanced malware scan, we recommend using Restoro Tool.

2. Uninstall any 3rd-party antivirus software

If you have installed any third-party software on your system, the windows operating system will automatically detect it and turn itself down and you receive the message, “Your IT administrator has limited access to some areas of this app, and the item you tried to access is not available. Contact It helpdesk for more information.” Thus the first thing you can try is to disable your other security programs.

See if the problem is solved, if Windows Defender is still stuck at the same message then remove the third-party antivirus altogether. To do so follow the steps given below:

1. Search for the Control Panel in the search bar of Windows 11.

search and open control panel

2. Switch to the Small icon in View As.

3. Click on Programs & Features.

004 program and feature control panel

4. Look for the Antivirus Program click on it and press Uninstall.

005 avast antivirus uninstall

The antivirus will get uninstalled. Now Restart your PC and see for yourself if the problem is still there or if it got solved.

3. Check your date and time setting

Correct date and time are very important when it comes to real-time protection, if your PC is operating on the wrong date and time then the antivirus software will think that you are running on an outdated definition and it will keep looking for new definitions thinking that your PC is out of date.

Setting the correct date and time on your Windows PC will resolve this issue. Here is how you can set the correct date and time:

1. Right-click the Time and Date widget in the Windows taskbar and select Adjust date and time.

006 adjust date and time

2. Select the Set Time Automatically toggle to turn the switch off.

007 set time automatically toggle the switch off

3. Select Change in the Set Date and Time manually section.

008 click on Change time

4. Set the date and time, then select Change to Confirm.

009 set the time and click on Change

After setting the correct time, Restart your PC and see if Virus & Threat Protection is still behaving in the same way.

4. Use PowerShell to enable Virus & Threat protection

It is time to use PowerShell to enable Virus & Threat protection:

1. Press Windows + S and search for Windows PowerShell. Click on Run as Administrator.

004 windows powershell run as administrator

2. When the Windows PowerShell windows open up enter the following command and press Enter the following:

Set-MpPreference -UILockdown 0

Restart your PC and see if the Virus & Threat Protection is working.

5. Repair and Reset Windows Security

Repairing and resetting windows’ security app may also resolve the issue of Virus & Threat protection not working or opening up. Here is how you can Repair and Reset Windows Security:

1. Press the Windows + X keys to open the Power user menu

2. From the menu list, select Apps & Features.

010 apps and features

3. In the right pane, scroll down to Windows security.

4. Then click on the three dots and select Advanced options.

011 windows security option set advanced

5. Scroll down and click on the Repair button in the Reset section.

012 windows security reset and repair

6. After clicking on the Repair option Restart your PC.

7. If Repairing does not help then follow steps 1 to 5 and click on the Reset button instead of Repair.

8. Restart your PC and see if the problem is solved.

6. Restart Windows Security Service

Next, you can try Restarting the Windows Security Service and see if it helps. To do so, you can use the below steps:

1. Open the Services windows, by searching for the services in the search bar and pressing Enter.

search and open services

2. Scroll down until you find Windows Security Service ( or Security Center) and double-click on it.

3. If the Service status is stopped, click on the Start button.

4. If the service is already running, stop it and then restart it again.

013 windows securtiy centre

5. Restart your PC and open Virus & Threat Protection and see if it getting opened and not showing the error message.

7. Turn on Real-time Protection settings

It may happen that the Real-time protection is turned off because of any reason. You must enable it as soon as possible to protect your PC from malware and threats.

Since you cannot go beyond this error message, “Your IT administrator has limited access to some areas of this app, and the item you tried to access is not available. Contact It helpdesk for more information.” the only way to enable it is using PowerShell or Command Prompt.

Here is how you can do that:

1. Search for Windows PowerShell in the Start Menu and click on Run as Administrator.

2. In the PowerShell Windows type the following command:

Set-MpPreference -DisableRealtimeMonitoring $false

After typing the command hit enter and the real-time protection will be turned on thereafter.

008 powershell command to on real time protection

3. Then search for Virus & Threat Protection in the Start menu and hit Open.

4. In the Virus & Threat Protection click on Manage Settings under Virus & Threat Protection settings.

5. Look for Temper protection and toggle the Switch on so that any other process cannot hinder any security feature in the future.

6. Restart the computer and check if Virus & Threat protection is working again.

8. Update the Windows to the latest version

Virus & Threat protection is a part of Windows 11 and Windows 10 so it needs updated windows to function properly with all the latest features. So it is necessary to keep your Windows updated to the latest version.

If you have any pending updates then please consider installing it by following the steps described below:

1. In the search bar of the Start Menu search for Check for updates and hit Open.

check for updated 1

2. Windows update page opens up and windows will start looking for updates. If any updates are available then the Download now button will appear. Click on it.

download the updates 1

3. After updating restart the computer and try to open Virus & Threat protection.

9. Run SFC and DISM Scans

Many times it happens that some program corrupts the system files, especially those which need access to a firewall or which require disabling the Virus & Threat protection to get installed in the system.

Such programs hamper the normal functioning of the Windows Defender and cause it to behave normally. So it is necessary to repair these files by running the windows Disk error-checking tools like windows DISM and SFC Scans.

These scans will make sure to restore and repair any missing or corrupted system files. Please refer to our DISM, SFS & Disk Check scans guide.

For a thorough scan of your system files, we recommend using a third-party tool that specializes in finding and repairing corrupted or damaged system files.

Restoro is a complex Windows system repair solution that scans your PC for various issues and fixes all critical system files and registry errors, as well as the damage left by viruses (not antivirus software). With a few clicks, the program frees up space on your disk and restores all compromised Windows settings to their default value.

Here is how you can perform this action:

1. Download Restoro.

2. Install and launch it.

3. Run the scan and let Restoro find any system stability issues and possible malware infections.

4. Press Start Repair.

5. Restart your PC for all the changes to take effect.

Restoro’s technology replaces severely damaged Windows system files with clean, up-to-date ones from its secure online database. You can allow it to perform this action without harming your user data.

This is the ideal all-in-one tool for fixing Windows errors, PC crashes, or registry issues. It can boost the performance of your device and make it more secure within a few minutes.

10. Making modifications to the Registry

Certain viruses are known to create entries in the registry that conflict with the functioning of Windows Defender. If that’s preventing you from accessing virus and threat protection, deleting the above entries will solve the problem. Here is how you do it:

1. Press Windows + R keys on the keyboard to open the Run dialog box.

003 windows and run button

2. Enter the following command regedit and press Enter.

regedit 2

3. When the Registry Editor opens up navigate to the following path:

HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Image File Execution Options

4. If you find any of the three entries, MSASCui.exeMpCmdRun.exe, or MsMpEnd.exe, right-click on each of them and click delete.

5. If there are no such entries then head on to the next fix.

11. Enable Windows Defender using the Registry

If none of the above steps worked then you can try to enable Windows Defender using the Registry Editor. Here is how you can do that:

1. Press Windows + R keys on the keyboard to open the Run dialog box, type, regeditand hit Enter.

regedit 2

2. When the Registry Editor opens up follow the following path:

HKEY_LOCAL_MACHINE\SOFTWARE\Poilicies\Microsoft\Windows Defender

016 windows defender registy path

3. Now click on Windows Defender, then on the right side double-click on DisableAntiSpyware file and click on Modify.

017 disable anti syware registry modify settings

4. Type 0 in the value section and hit enter. This will enable the Windows Defender in the registry settings.

027 set the value to 0 and press enter

5. After this Double-click on the Windows Defender folder and look for the Real-time Protection key and click on it.

On the right side look for the following files if any and set the value as specified:

  • DisableRealtimeMonitoring – set value to 0.
  • DisableOnAccessProtection – set value to 0.
  • DisableBehaviorMonitoring – set value to 0.
  • DisableScanOnRealtimeEnable – set value to 0.
020 making new folder under real time protection

6. If you find the Signature Update key under the Windows Defender folder then double click on it and on the right side look for the following and set the value to 1.
ForceUpdateFromMU – set the value to 1.

022 making new registy under new dword 1

7. If you find the Spynet key under the Windows Defender folder then double click on it and on the right side look for the following and set the value to 0.
DisableBlockAtFirstSeen – set the value to 0.

021 making new folder under skynet

8. Restart the computer and the Windows Defender will start again.

If you want to know step-by-step how to enable and disable Windows Defender then follow this complete guide on How to Enable and disable Windows Defender.

12. Perform a System Restore

If your computer is enabled to create an automatic restore point then it’s always a good option to restore your computer to a previous working condition. If the windows defender was working before and now it is not working and showing the error message then try System Restore.

System Restore lets you restore your Windows installation back to its last working state. It does this by creating a “Restore point” every so often. Restore points are snapshots of your Windows system files, certain program files, registry settings, and hardware drivers.
Follow this guide on How to perform a System Restore.

13. Reset Windows

If none of the above fixes mentioned above didn’t work, a restore point was unavailable, or system restore didn’t help, amongst other things, you can always Reset windows 11 to its factory settings.

021 reset this PC screen 2

Follow this complete guide on How to Factory reset your Windows PC.

Bottom Line

This is it. The above fixes should resolve the windows 11 virus and threat protection not working issue and get things up and running. In most cases, when you run into this error, it is because you have some corrupted system files.

Therefore, we always recommend running an SFC and DISM scan to look for any system-wide corruption and repair it to resolve some difficulties, such as the Windows Security issue i.e. Windows Defender issue. Let us know in the comment section below which fix worked for you.

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Posted by
Ekansh Sudha

Hello there, I am Ekansh Sudha, basically a technology freak. Lover of innovation, advancement & change. I like how technology shapes our live & make good use of them to make our life, even more, better...(^_^)....

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