How to fix Windows Defender Protection history missing in Windows?

Question

Issue: How to fix Windows Defender Protection history missing in Windows?

Last week, I began experiencing an issue that caused the protection history for Windows Defender to show empty results despite receiving notifications of programs being blocked. Before that, whenever I used to get a false positive and I would like to unblock the app, it would be easy to do via Protection history, which is now missing.

Solved Answer

Microsoft Defender (previously known as Windows Defender) is a comprehensive security solution from Microsoft that helps protect your computer systems, networks, and data from malicious actors. It utilizes a host of tools, such as anti-malware, firewall protection, and other security features to defend against common threats.

With Microsoft Defender, you can detect and prevent viruses and other types of malicious software before they can cause damage to your organization or its data. Additionally, Microsoft Defender helps you monitor and respond to potential security incidents in a timely manner. As this happens, users would get a notification at the bottom-right of their screens, which would indicate that a threat has been found.

Unfortunately, some users have experienced issues with the app, and there are plenty. This time, we will be talking about Microsoft Defender not showing Protection history, which may sound insignificant but is actually quite a big problem. After users get a pop-up about the infection, they can not check properly what the detection is, or how to handle it further.

Usually, missing Protection history is caused by general bugs or corrupted system files. These issues can be addressed in numerous ways – we provide them below. If you want to try a quicker solution, we recommend running a scan with an automatic PC repair tool ReimageMac Washing Machine X9 as well.

How to fix Windows Defender Protection history missing in Windows?

Fix 1. Install all available Windows updates

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  • Type Updates in Windows search and hit Enter
  • On the right side, click Check for updates
  • Wait till all the data is downloaded and installed, and don't forget to install all the optional updates
  • After it's done, reboot the computer

Update Windows

Fix 2. Check for corrupted system files

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System file corruption is one of the most common reasons for Windows apps malfunctioning, so make sure you repair those files using SFC and DISM commands via an elevated Command Prompt.

  • Type cmd in Windows search
  • Right-click on the Command Prompt result and select Run as administrator
  • When User Account Control (UAC) window shows up, click Yes
  • In the new window, type in the following commands, pressing Enter after each:
    sfc /scannowHow to fix Windows Defender Protection history missing in Windows?
    DISM /Online /Cleanup-Image /CheckHealth
    DISM /Online /Cleanup-Image /ScanHealth
    DISM /Online /Cleanup-Image /RestoreHealth
  • Restart your system after each of these commands is executed.

SFC and DISM

Fix 3. Reset Windows Defender

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Resetting the app may help, so please follow these steps:

  • Click Start and scroll down to find the Windows Security entry from the list
  • Right-click on Windows security and go to More tools, then select App settings
  • Scroll down and click Terminate
  • Next, click Reset and wait
  • Open Windows Defender and see if the Protection history is back.

Reset Defender

Fix 4. Check if another program is interfering with Windows Defender

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If you have another app installed for security, it may interfere with the work of Defender. To check this, please follow these steps:

  • Type Security and Maintenance in the Windows search field and hit Enter
  • Expand Security section
  • If another app (not Windows Defender) is listed here, you should uninstall it.

Fix 5. Delete detection history

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  • Open File Explorer by pressing Win + E
  • At the top of the window, select the View tab
  • Mark the Hidden items checkbox
  • Now navigate to the following location:
    C:\ProgramData\Microsoft\Windows Defender\Scans\History
  • Delete the contents of Service folder by pressing Shift + Del on your keyboard or right-click > Delete

Delete history

  • Next, open Windows Security
  • Go to Virus and threat protection > Virus & threat protection settings > Manage settings
  • Disable Real-time protection and Cloud-delivered protection
  • Restart your PC.

Disable protection

In case any of these steps fail to work, use Command Prompt instead:

  • Open Command prompt as administrator as we explained earlier
  • In the new window, copy and paste the following commands, pressing Enter after each:
    del “C:\ProgramData\Microsoft\Windows Defender\Scans\mpcache*” /s > NUL 2>&1
    del “C:\ProgramData\Microsoft\Windows Defender\Scans\History\Service\DetectionHistory\*”
    del “C:\ProgramData\Microsoft\Windows Defender\Scans\mpenginedb.db”
  • Close down Command Prompt and restart your system.

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About the author
Gabriel E. Hall
Gabriel E. Hall - Passionate computer expert

Gabriel E. Hall is an expert troubleshooter who has been working in the information technology industry for years.

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