Miscroft Defender scaning error

Question

When I'm downloading a .docset file(JavaScript.tar) from a mirror documentation source(like http://singapore.kapeli.com/feeds/JavaScript.tgz) on chrome, I found it stay Unconfirmed.crdownload status after fully(100% not network error) download. I guess there's something wrong with my Defender Security Checking.

So I try another downloader(NeatDM) to redownload again and successfully get it(JavaScript.tar). By right clicking to scan the file with microsoft defender , the progress bar stay 0%(remaining time 00:00:00). A about ten minutes later, in another retrying it scan successfully. Any idea about how this happens? And May I got my target file from the Unconfirmed.crdownload file by reedit its suffix name(.tgz)?

Answer 1

Hi Wrym Pale

Welcome to Microsoft Community.

I know that you are having trouble on Microsoft Defender gets stuck or unresponsive when scanning files you have downloaded. I understand how you feel and what is troubling you, please allow me to address this for you.

I will give you some options for you to try, please try one step at a time, thank you very much!

Option 1: Have you installed some third-party anti-virus software, if so, please uninstall to prevent conflicts.

Option 2: If you have a Professional Edition system, please try to modify the local group policy.

"Windows Logo Key + r" -> Type "gpedit.msc" to open local group policy -> Find Computer Configuration -Administrative Templates - Windows Components - Windows Defender Antivirus -> On the right hand side, change the status of "Turn off Windows Defender Antivirus" to "Configured" -> Click Save -> Change it back to "Unconfigured" to see if it solves your problem.

Option 3: If you are not using Windows Professional, please try the following steps.

“Windows Logo Key” to open the search bar -> Enter “Services” in the search bar and run it with administrator privileges -> Find “Windows Defender related services” in Services and restart all the related services

If you open the service and find the button is grayed out and unclickable, try the command I gave you to modify the registry to complete it.

“Windows Logo Key” to open the search bar -> Enter “Windows PowerShell” in the search bar and run it with administrator privileges -> Please enter the following commands in sequence

reg add "HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender" /v "DisableAntiSpyware" /d 1 /t REG_DWORD /f

Restart your computer after executing this command.

reg add "HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender" /v "DisableAntiSpyware" /d 0 /t REG_DWORD /f

Restart your computer after executing this command.

Disclaimer: Generally, modifying registry subkeys or work group is intended for advanced users, administrators, and IT Professionals. It can help fix some problems, however, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For further protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click How to back up and restore the registry in Windows - Microsoft Support to view the article.  

Option 4: It is possible that your system is missing or corrupted some systematic files, I will help you to try to fix them!

“Windows Logo Key” to open the search bar -> Enter “Windows PowerShell” in the search bar and run it with administrator privileges -> Please enter the following commands in sequence

DISM /Online /Cleanup-Image /ScanHealth

DISM /Online /Cleanup-Image /CheckHealth

DISM /Online /Cleanup-Image /RestoreHealth

SFC /Scannow

Please note: Please enter the next command after the previous command has been executed.

I sincerely hope that the above solution will solve your problem.

We look forward to hearing back from you. 

Best Regards

Arthur Sheng | Microsoft Community Support Specialist