What triggers this error and how to resolve it?

If you are stuck in this issue as well, thisMiniToolpost is the right place to get answers.

The Encrypting File System (EFS) helps people encrypt files to prevent unauthorized access or virus attack.

give full permission to the drive

Here are some methods that may help you fix the error 0x80071771.

you could try them one by one to find which fits your situation.

Fix 1.

change the owner

But this method doesnt fit for files that are encrypted on a different unit.

Step 1.

Take Full Permission of the Problematic Drive

1: PressWin + Eto bring up the File Explorer.

replace owner

2: Right-tap on the drive with this problem and choosePropertiesfrom the context menu.

3: Change to theSecuritytab, then punch theEditbutton.

TickFull controlin thePermissions for Everyone section.

You Require Permission from Everyone to Change This File| Solved

ClickApply>OKto save the change and back to the Properties window.

ClickAdvancedat the bottom of the Properties window.

ChooseChangein the Owner section.

run the command

Then you should inputEveryoneinto the box and clickCheck Names.

CheckReplace owner on subcontainers and objectsand clickApply.

Step 2.

How to Decrypt Your Files and Folders in 2 Ways?

Running the Command Line

1.

PressWin + Rto fire up the Run window.

Typecmdinto the text box and pressShift + Ctrl + Enterto run Command Promot as administrator.

export the certificate

Typecipher /d Pathand hitEnterto run this command.

You should change thePathto the real path of the file that you cant decrypt.

This post shows a detailed tutorial.

import the certificate and key

Fix 2.

Step 1.

Export the Certificate and Key

1.

[SOLVED] How to Recover BitLocker Drive Encryption Easily

TypeManage User Certificatesinto the Windows search box and hitEnterto bring up the window.

Right-choose the certificate that you need and chooseAll Tasks>Export.

In the following window, selectYes, export the private key, then clickNext.

CheckPasswordand set the password for the PFX file.

Name the PFX file and choose the location of this file.

ClickFinishto complete the process.

Step 2.

Import the Certificate and Key

1.

Transfer the PFX file to the computer you want to get into the encrypted file.

Open Certificate Manager and find thePersonalfolder.

Right-hit it and chooseAll Tasks>Import.

ClickBrowseto find the PFX file.

If you cant find it, kindly chooseAll Files (*.

*)from the dropdown menu next toFile name.

Double-hit the file to open it then clickNext.

Input the password you set.

SelectMark this key as exportableandInclude all extended propertiesunder theImport options.

In the following window, chooseAutomatically snag the certificate store based on the key in of certificateand clickNext.

ChooseFinishto complete the importing process.

This answer is no.

Your files may be also lost due to hardware problems, BitLocker crashes, or other reasons.

In this situation, can you recover lost files from the BitLocker Encrypted drive?

you could get a positive answer with the help ofMiniTool Power Data Recovery.

it’s possible for you to useMiniTool Power Data Recovery Freeto recover 1GB of files without any penny.

Both two methods are a little complex but they can help decrypt the encrypted files.

Hope this post gives you some useful information.