How to Fix Error 0x80071771 The specified file could not be decrypted

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The error code 0x80071771 that reports a problem indicating that "the specified file could not be decrypted" is displayed for EFS (File Encryption System). EFS is an integrated encryption tool for Windows 8, 10 and other versions, which was developed for the security of people files.

The EFS function creates a standard cryptographic algorithm, which blocks the files that the system recognizes as not protected. Encrypted data is protected from the physical property of the computer, as well as from people with unauthorized access to the PC and files. However, EFS protection can be a big problem if the owner of the encrypted data does not have an adequate cryptographic key. If there is something really unusual then report it to Windows community, though this guide will completely solve your issue of this ERROR 0x80071771 The specified file could not be decrypted.

This type of file encryption is not secure if the user intentionally applies it to protect the files against unauthorized access. In other words, the encryption is transparent and the key is stored in the operating system, which means that it can be extracted.

Error 0x80071771 The specified file could not be decrypted

I tried to access the file after updating to Windows 10, but I received an error 0x80071771: the specified file could not be encrypted. I checked it twice and I am the owner of this file and I have all rights (right click> property> security> expensive). The file was created before updating to Windows 10, but I do not remember having encrypted it. Is there any way to determine how this file is encrypted? Better yet, is there an exit?

Solution: It is more likely that the error codes you find are associated when you try to access files from removable devices created with different computers. To help isolate this problem, ask yourself the following questions:

  • Are these files stored on a USB drive?
  • Was the file originally created from another device where you tried to open it?
  • Can you tell us what kind of file it is?
  • Does the problem only happen with certain files or with other people?


Error 0x80071771: Step-Wise Solution


This problem is likely to occur if the file has been encrypted by the file encryption system (EFS). This is the default Windows encryption tool used to encrypt files and folders to protect against unwanted access. To solve your problem by accessing the files, we recommend that you use some decryption methods. Before doing this, you must have full permission to access the system files. To establish full control of your hard drive, follow these steps:

Right-click on the drive letter that corresponds to your hard drive and select Properties.

How to Fix Error 0x80071771 The specified file could not be decrypted

Go to Security> Edit> Add.

How to Fix Error 0x80071771 The specified file could not be decrypted

In the section Enter the name of the object to be selected (example), type All and then click OK.

How to Fix Error 0x80071771 The specified file could not be decrypted

Click on Everyone and, in the Permissions for all section, check the option in Allow.

How to Fix Error 0x80071771 The specified file could not be decrypted

Click Apply, and then click OK.
Open the Security tab again and then click Advanced.
Click on the Edit button on the Permissions tab, then type All and click OK.

How to Fix Error 0x80071771 The specified file could not be decrypted

Select the checkbox next to Change the owner of a sub-container and an object, and click Apply.

Open the Audit tab and then click Add.

Click on the Main Select button, type All and click OK.

How to Fix Error 0x80071771 The specified file could not be decrypted

Click Apply, and then click OK.
Restart your computer to apply the changes.
After that, do this decryption method:

Decrypt files or folders through the context menu

  • Right-click on the file or folder you are trying to access, then click File Ownership and select Private.
Decrypt files or folders using advanced attributes

  • Right-click on the file or folder you are trying to access and select Properties.
  • On the General tab, click Advanced.
  • Clear the "Encrypt content to protect data" check box, and then click OK.
  • Click the radio button next to "Apply changes only to this folder" or "Apply changes to this folder, subfolders, and files" according to your preferences, and then click OK.
Decrypt files through a command prompt

  • Run the command prompt as administrator.
  • Type encryption/d "full file path with the extension" and then press Enter.
Note: Replace the "full file path with extensions" in the command provided with the current file path.

If you try to encrypt or decrypt files using the default EFS Engine, unexpected errors force you to apply properties to the files. If you continue to receive errors, you can use the error code to find help to resolve this problem. Error 0x80071771, the specified file could not be decrypted. This message can help you.

Error 0x80071771: The Root Cause

The main cause of this error is that the source file is encrypted or decrypted and cannot be read by the copy and paste function of File Explorer. In general, it can happen if you access files previously on other computers.


  • First, see if you can decrypt files encrypted by EFS.
  • If you can not, continue and control the file completely. To do this, open the File Explorer, right-click on Partition, and then click Properties.
  • On the Security tab, click the button that says Edit ... When doing so, make sure that Everyone is selected in Groups or Username.
  • Now the Permissions for All section will be activated. Make sure that all the check boxes for Allow are checked. Click on Apply
  • Then click on the button called Advanced. A window called Advanced Security Settings will appear. Now click on the Change link for the Owners section.
  • Enter your account name in the field and click Check Name to verify the name of the account, and then click OK.
  • Select the option that says Change owner in the sub-container and the object. Click on OK

This is done, now in the Group or Username list, select Administrator and then Full Control in the Permissions panel for administrators. Click on OK

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