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Summary

Are you trying to find a way to stop Windows 10 from deleting files on your computer after the system upgrade? Does Windows 10 Defender remove your downloaded files from PC without confirmation? Here on this page, you’ll find useful methods to restore deleted files on Windows 10 and stop Windows 10 from deleting files without asking by simple clicks.

on this page, you'll find handy solutions to restore deleted files on Windows 10 and stop Windows 10 from deleting files without asking.

Q: Windows Defender Keeps Deleting Files

'Hi, I'm having an issue that my computer is automatically deleting files without asking me for confirmation. I use some programs with .exe extension. But Windows defender reads those as a virus, and it deletes them while I still want them! How do I stop Windows defender from deleting files that I want to keep?'

Are you having the same issue that Windows defender keeps deleting files? Or is your Windows 10 automatically deleting downloaded files and data without asking for confirmation? Although it sounds senseless, it is true. Windows 10 may keep deleting programs and documents after restart because of the defender or the new storage sense feature in Windows 10. But, you don't have to worry since you can easily recover deleted files Windows 10 using a professional data recovery tool, after that, you can use the helpful methods demonstrated below to stop Windows from deleting files automatically.

Part 1. Restore Files Deleted by Windows 10

If your important files got removed or deleted by Windows 10 and you can't get them back anyhow, don't worry. One of the best file recovery software - EaseUS Data Recovery Wizard can simply recover your lost files within three steps. It allows you to restore files deleted from the recycle bin, HDD, SSD, USB flash drive, external hard drive, digital camera, and more.

Now, download and install this software on your PC and follow the next steps to restore the removed files deleted by Windows 10.

Step 1. Is it a local hard drive disk or a removable storage device from which the files were deleted? Choose the exact file location and then click the 'Scan' button to continue.

Step 2. Wait for the scan to completes. After the process, you can preview the found files and select what you need. There is no limit in number.

Step 3. Now, click the 'Recover' button to save the restored files to another location rather than the original one. Then, click 'OK' to finish the recovery.

Part 2. Fix Windows 10 Automatically Delete Files Error

After getting all your lost files deleted by the Windows system, now you can follow solutions here to fix Windows 10 from deleting files problem.

Method 1. Stop Windows Defender from Deleting Files Automatically

1. Open 'Windows Defender' > Click on 'Virus & threat protection'.

2. Scroll down and click 'Virus & threat protection' settings.

3. Scroll down to 'Exclusions' and click 'Add or remove exclusions'.

4. Click + plus icon to add an exclusion and select File, Folder, File Type, or Process, then specify the exact files, folders, or even file types that you don't want to get them deleted or removed by Windows Defender.

5. Save all changes. If you don't want Windows Defender to remove the .dll files, click 'File Types' and type in the .dll and .exe file extension, click 'Add'. After this, those files that you’ve set to be excluded won’t be removed or deleted again.

Method 2. Turn off Storage Sense to Stop Windows 10 Deleting Files Automatically

Storage Sense in Windows 10 is a new feature. When you enable it, Windows will automatically delete unused files when the computer is low on disk space. For instance, it can automatically delete files older than 30 or 60 days from the Recycle Bin or delete temporary files to free up some space. It also can delete older files in the Downloads folder.

But If you don't want the Storage Sense to delete files by itself, you can change its default settings to prevent Windows 10 from automatically deleting files when you want to keep them

Step 1. Open the 'Settings' app. Click the 'System' > 'Storage'. You can flip the Storage Sense switch to 'Off'.

Step 2. If you don't want to disable this feature totally, you can re-configure Storage Sense by click 'Change how we free up space automatically'.

Step 3. Click the box under 'Delete files in my recycle bin if they have been there for over' and select 'Never'. Also, click the box under 'Delete files in my Downloads folder if they have been there for over' and choose 'Never'.

Method 3. Uninstall Faulty Updates that Delete Files on Windows 10

As we all know that sometimes the newly installed Windows system would remove or delete files on the computer without asking you for permission. It seems that if you’ve installed an incompatible or faulty Windows 10 update, it will remove or delete your files on PC. SO the most straight-forward way is to uninstall the faulty updates that remove files on your Windows 10 computer.
Here are the detailed steps about how to uninstall faulty updates:

Step 1. Press Windows + X keys and select 'Control Panel'.

Step 2. Click 'Programs and Features' and select 'View Installed Updates'.

Step 3. Click the 'Installed On' column header to sort the updates by dates.

Step 4. Locate and right-click on the large-sized, major updates that you’ve recently downloaded, and select 'Uninstall'.

Step 5. When the uninstall process completes, reboot your PC.

PS: If you want to install the latest Windows 10 update, you can refer to Microsoft Windows 10 update official website to download Windows 10 ISO and install it on your PC then.

Applies to:

To ensure Windows Defender Antivirus cloud-delivered protection works properly, you need to configure your network to allow connections between your endpoints and certain Microsoft servers.

This article lists the connections that must be allowed, such as by using firewall rules, and provides instructions for validating your connection. Configuring your protection properly helps ensure that you receive the best value from your cloud-delivered protection services.

See the blog post Important changes to Microsoft Active Protection Services endpoint for some details about network connectivity.

Tip

You can also visit the Microsoft Defender ATP demo website at demo.wd.microsoft.com to confirm the following features are working:

• Cloud-delivered protection
• Fast learning (including block at first sight)
• Potentially unwanted application blocking

Allow connections to the Windows Defender Antivirus cloud service

The Windows Defender Antivirus cloud service provides fast, strong protection for your endpoints. Enabling the cloud-delivered protection service is optional, however it is highly recommended because it provides important protection against malware on your endpoints and across your network.

Note

The Windows Defender Antivirus cloud service is a mechanism for delivering updated protection to your network and endpoints. Although it is called a cloud service, it is not simply protection for files stored in the cloud, rather it uses distributed resources and machine learning to deliver protection to your endpoints at a rate that is far faster than traditional Security intelligence updates.

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See Enable cloud-delivered protection for details on enabling the service with Intune, System Center Configuration Manager, Group Policy, PowerShell cmdlets, or on individual clients in the Windows Security app.

After you've enabled the service, you may need to configure your network or firewall to allow connections between it and your endpoints.

Because your protection is a cloud service, computers must have access to the internet and reach the ATP machine learning services. Do not exclude the URL *.blob.core.windows.net from any kind of network inspection. The table below lists the services and their associated URLs. Make sure that there are no firewall or network filtering rules denying access to these URLs, or you may need to create an allow rule specifically for them (excluding the URL *.blob.core.windows.net). Below mention URLs are using port 443 for communication.

Validate connections between your network and the cloud

After whitelisting the URLs listed above, you can test if you are connected to the Windows Defender Antivirus cloud service and are correctly reporting and receiving information to ensure you are fully protected.

Use the cmdline tool to validate cloud-delivered protection:

Use the following argument with the Windows Defender Antivirus command-line utility (mpcmdrun.exe) to verify that your network can communicate with the Windows Defender Antivirus cloud service:

Note

You need to open an administrator-level version of the command prompt. Right-click the item in the Start menu, click Run as administrator and click Yes at the permissions prompt. This command will only work on Windows 10, version 1703 or higher.

For more information, see Manage Windows Defender Antivirus with the mpcmdrun.exe commandline tool.

Attempt to download a fake malware file from Microsoft:

You can download a sample file that Windows Defender Antivirus will detect and block if you are properly connected to the cloud.

Download the file by visiting the following link:

Note

This file is not an actual piece of malware. It is a fake file that is designed to test if you are properly connected to the cloud.

If you are properly connected, you will see a warning Windows Defender Antivirus notification:

If you are using Microsoft Edge, you'll also see a notification message:

A similar message occurs if you are using Internet Explorer:

You will also see a detection under Quarantined threats in the Scan history section in the Windows Security app:

1. Open the Windows Security app by clicking the shield icon in the task bar or searching the start menu for Defender.

2. Click the Virus & threat protection tile (or the shield icon on the left menu bar) and then the Scan history label:

3. Under the Quarantined threats section, click the See full history label to see the detected fake malware:

Note

Versions of Windows 10 before version 1703 have a different user interface. See Windows Defender Antivirus in the Windows Security app.

The Windows event log will also show Windows Defender client event ID 2050.

Important

You will not be able to use a proxy auto-config (.pac) file to test network connections to these URLs. You will need to verify your proxy servers and any network filtering tools manually to ensure connectivity.

Related articles

• Run an Windows Defender Antivirus scan from the command line and Command line arguments