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Participant
June 14, 2021
Answered

Unable to install mc_enc_hevc.dll

  • June 14, 2021
  • 64 replies
  • 29495 views

I have tried all solutions found through google and used the adobe cleaner to do a fresh install of premiere, nothing seems to get this DLL to load properly. I do have an active Adobe CC subscription as well.

 

  1. OS: Windows 10

  2. Version: Adobe Premiere Pro Version 15.2.0 (Build 35)

  3. System: 1700x 32gb RAM RTX 3070rakc

  4. Footage form Canon R5: H.265 4:2:2 10-bit UHD 4k @ 59.94fps

Correct answer marcelov96479431
Logré reparar el problema. Se soluciona creando otro usuario administrador
en windows. Al activar el nuevo uso de Adobe premiere termina funcionando.

64 replies

Participating Frequently
July 22, 2026

저는 해결방법을 찾았습니다.

제가 진행한 방법은 다음과 같습니다.

 

1. 윈도우에서 새로운 계정을 하나 더 만드세요.(윈도우 > 설정 > 계정 > 다른사용자 > 계정추가)

2. 설치문제가 일어난 계정에서 "AdobeInstalledCodecsTier2"폴더를 삭제하세요

3. 1에 만들어놓은 새로운 계정으로 윈도우를 다시 로그인 하세요

4. 1의 윈도우에서 프로미어프로나, 엔코더를 실행하여 "AdobeInstalledCodecsTier2"폴더가 새롭게 생성되는지 확인하세요.

5. 1의 윈도우에서 "AdobeInstalledCodecsTier2"폴더 > 오른쪽클릭 > 속성 > 보안 > 문제가 일어난 계정(2항)의 사용자 권한이 모두 체크되어 있는지 없는지 확인 > 없다면 편집을 눌러 모든 권한을 체크하고 적용, 확인 > 아래 고급탭을 다시 눌러 소유자를 변경 > 1의 소유자로 되어 있을텐데, 2로 변경해주세요(변경방법 : 변경 > 고급 > 지금찾기 > 2의 선택 후 확인 > 확인 ; 이렇게하면 문제가 일어난 2의 계정으로 소유자가 변경된 것을 확인 할 수 있습니다) > 사용권한 항목에서 2의 계정 모든 권한 설정 후 적용, 확인 > 고급 보완 설정 적용, 확인

6. "AdobeInstalledCodecsTier2" 하위 폴더(예컨데, "4.X폴더")도 동일하게 5항을 따라서 보안 속성을 변경해주세요.

7. 문제가 일어난 계정(2항)의 계정으로 윈도우 로그인 후 프로미어프로나 엔코더가 정상 작동하는지 확인하세요.

 

저는 이 방법으로 설공했습니다.

다른 분들도 도움이 되시길 바랍니다.

============================================================================
 

I found a solution to the problem.

Here is the method that worked for me:

  1. Create a new Windows user account.
    Go to Windows Settings > Accounts > Other users > Add account.

  2. Log in to the account where the installation problem occurred, and delete the AdobeInstalledCodecsTier2 folder.

  3. Sign out of Windows and log in using the new account created in Step 1.

  4. Open Adobe Premiere Pro or Adobe Media Encoder under the new account and check whether the AdobeInstalledCodecsTier2 folder is created again.

  5. Under the new Windows account, right-click the AdobeInstalledCodecsTier2 folder and go to:

    Properties > Security

    Check whether the original account where the problem occurred has all permissions enabled.

    If not, click Edit, enable Full control and all other permissions, then click Apply and OK.

    Next, click Advanced and change the folder owner.

    The owner will probably be set to the new account created in Step 1. Change it to the original account where the problem occurred.

    To change the owner:

    Change > Advanced > Find Now > Select the original account > OK > OK

    Confirm that the owner has been changed to the original account.

    Then, under the permission entries, give the original account full control and click Apply and OK. Apply and close the Advanced Security Settings window as well.

  6. Repeat the same security and ownership changes described in Step 5 for the subfolders inside AdobeInstalledCodecsTier2, such as the 4.X folder.

  7. Log back into Windows using the original account where the problem occurred, then check whether Premiere Pro or Adobe Media Encoder now works properly.

This method worked for me.

I hope it helps others who are experiencing the same problem.

Participating Frequently
July 22, 2026

저는 해결방법을 찾았습니다.

제가 진행한 방법은 다음과 같습니다.

 

1. 윈도우에서 새로운 계정을 하나 더 만드세요.(윈도우 > 설정 > 계정 > 다른사용자 > 계정추가)

2. 설치문제가 일어난 계정에서 "AdobeInstalledCodecsTier2"폴더를 삭제하세요

3. 1에 만들어놓은 새로운 계정으로 윈도우를 다시 로그인 하세요

4. 1의 윈도우에서 프로미어프로나, 엔코더를 실행하여 "AdobeInstalledCodecsTier2"폴더가 새롭게 생성되는지 확인하세요.

5. 1의 윈도우에서 "AdobeInstalledCodecsTier2"폴더 > 오른쪽클릭 > 속성 > 보안 > 문제가 일어난 계정(2항)의 사용자 권한이 모두 체크되어 있는지 없는지 확인 > 없다면 편집을 눌러 모든 권한을 체크하고 적용, 확인 > 아래 고급탭을 다시 눌러 소유자를 변경 > 1의 소유자로 되어 있을텐데, 2로 변경해주세요(변경방법 : 변경 > 고급 > 지금찾기 > 2의 선택 후 확인 > 확인 ; 이렇게하면 문제가 일어난 2의 계정으로 소유자가 변경된 것을 확인 할 수 있습니다) > 사용권한 항목에서 2의 계정 모든 권한 설정 후 적용, 확인 > 고급 보완 설정 적용, 확인

6. "AdobeInstalledCodecsTier2" 하위 폴더(예컨데, "4.X폴더")도 동일하게 5항을 따라서 보안 속성을 변경해주세요.

7. 문제가 일어난 계정(2항)의 계정으로 윈도우 로그인 후 프로미어프로나 엔코더가 정상 작동하는지 확인하세요.

 

저는 이 방법으로 설공했습니다.

다른 분들도 도움이 되시길 바랍니다.

Participating Frequently
July 22, 2026

저는 해결방법을 찾았습니다.

제가 진행한 방법은 다음과 같습니다.

 

1. 윈도우에서 새로운 계정을 하나 더 만드세요.(윈도우 > 설정 > 계정 > 다른사용자 > 계정추가)

2. 설치문제가 일어난 계정에서 "AdobeInstalledCodecsTier2"폴더를 삭제하세요

3. 1에 만들어놓은 새로운 계정으로 윈도우를 다시 로그인 하세요

4. 1의 윈도우에서 프로미어프로나, 엔코더를 실행하여 "AdobeInstalledCodecsTier2"폴더가 새롭게 생성되는지 확인하세요.

5. 1의 윈도우에서 "AdobeInstalledCodecsTier2"폴더 > 오른쪽클릭 > 속성 > 보안 > 문제가 일어난 계정(2항)의 사용자 권한이 모두 체크되어 있는지 없는지 확인 > 없다면 편집을 눌러 모든 권한을 체크하고 적용, 확인 > 아래 고급탭을 다시 눌러 소유자를 변경 > 1의 소유자로 되어 있을텐데, 2로 변경해주세요(변경방법 : 변경 > 고급 > 지금찾기 > 2의 선택 후 확인 > 확인 ; 이렇게하면 문제가 일어난 2의 계정으로 소유자가 변경된 것을 확인 할 수 있습니다) > 사용권한 항목에서 2의 계정 모든 권한 설정 후 적용, 확인 > 고급 보완 설정 적용, 확인

6. "AdobeInstalledCodecsTier2" 하위 폴더(예컨데, "4.X폴더")도 동일하게 5항을 따라서 보안 속성을 변경해주세요.

7. 문제가 일어난 계정(2항)의 계정으로 윈도우 로그인 후 프로미어프로나 엔코더가 정상 작동하는지 확인하세요.

 

저는 이 방법으로 설공했습니다.

다른 분들도 도움이 되시길 바랍니다.

============================================================================
 

I found a solution to the problem.

Here is the method that worked for me:

  1. Create a new Windows user account.
    Go to Windows Settings > Accounts > Other users > Add account.

  2. Log in to the account where the installation problem occurred, and delete the AdobeInstalledCodecsTier2 folder.

  3. Sign out of Windows and log in using the new account created in Step 1.

  4. Open Adobe Premiere Pro or Adobe Media Encoder under the new account and check whether the AdobeInstalledCodecsTier2 folder is created again.

  5. Under the new Windows account, right-click the AdobeInstalledCodecsTier2 folder and go to:

    Properties > Security

    Check whether the original account where the problem occurred has all permissions enabled.

    If not, click Edit, enable Full control and all other permissions, then click Apply and OK.

    Next, click Advanced and change the folder owner.

    The owner will probably be set to the new account created in Step 1. Change it to the original account where the problem occurred.

    To change the owner:

    Change > Advanced > Find Now > Select the original account > OK > OK

    Confirm that the owner has been changed to the original account.

    Then, under the permission entries, give the original account full control and click Apply and OK. Apply and close the Advanced Security Settings window as well.

  6. Repeat the same security and ownership changes described in Step 5 for the subfolders inside AdobeInstalledCodecsTier2, such as the 4.X folder.

  7. Log back into Windows using the original account where the problem occurred, then check whether Premiere Pro or Adobe Media Encoder now works properly.

This method worked for me.

I hope it helps others who are experiencing the same problem.

Participant
April 8, 2025

i need my money back man. adobe just takes takes takes and does not provide any solutions. why do i have to MacGyver software that I am paying for? OP was 4 years ago and this is still an issue adobe is inept at having a solution for or any solution. are there actual humans that work for you guys?????

 

Mod note: Abuse removed.

Participant
October 17, 2024

Today I have been able to reproduce this error even after using additional administrator account. Then I have set the both .dll files permissions to read-only, and now the process that used to delete them can no longer succeed. In practice, when I render I get the messages pinned on top of this thread, however, render proceeds smoothly with no issues. I hope it helps.

Participating Frequently
June 27, 2023

Hello I found a fix.

u will need to use another pc

instalk adobe and photoshop on another computer, with ur adobe account, then copy the .dll files from ur other pc to the old one with the missing files. And it will work just like butter

Participating Frequently
September 29, 2024

고맙습니다! 당신이 제시한 해결책이 가장 빠르고 쉽고 간편한 방법이었어요!

 

한방에 해결되었습니다!!!

 

어도비 직원도 해결 못하는걸 유저들이 해결해야하다니!!!!

 

당신에게 정말 감사함을 느낍니다!! 

Participant
February 21, 2023

😱😱😱😱I just came with this annoying bug and not even creating another admin user worked. However, If I open Adobe media encoder, then import the premiere .prproj file it will prompt me which sequence from that project I want to render. Just select all of the ones you need to render, and media enconder will render as if nothing. 

So instead of sending the sequences from premiere to media enconder, import the prproj file into media enconder and select your render sequences. If you need to re render something because of a correction, just go to premiere, fix whatever you need, save it and then reimport into Media enconder for rendering. I haven't been able to actually fix the problem, but this helps me get around quickly and fulfill my delivery dates. 

Hope this helps somebody stuck with this 🙂 👍👍👍

Participant
April 7, 2023

It causes me the same issue even in Media Encoder.
Creating a new admin user didn't help as well.

Participating Frequently
January 22, 2023

I have the solution !!!
It's very simple, just start Premiere as an administrator.
Right-click on the Premiere icon and run as admin.
That what

Participating Frequently
January 22, 2023

Sorry

Wrong alarm, it doesn't work.
Where's Adobe help ???

 

Kevin J. Monahan Jr.
Legend
January 24, 2023

Hey, Rafael,

Sorry, this is a user-to-user forum. You would need to file a bug to get the devs' attention. You can get assisted help from Adobe reps. here. I am here, but I am unfamiliar with this bug as this post is a year and a half old. More info may help us help you. Can you provide it?

 

Thanks,
Kevin

Kevin Monahan - Sr. Community and Engagement Strategist – Adobe Pro Video and Audio
Participating Frequently
December 9, 2022

This has happened to me today. After years of having it work fine now my software is bricked. I hope someone can tell me a support email or a phone number I can call to get this resolved. I was trying to edit a YouTube video but this has made me highly discouraged. I am to be honest at my wits end over this.

Kevin J. Monahan Jr.
Legend
December 9, 2022

Hi,

Sorry about the frustration. Yes, you can contact support if you are a Creative Cloud customer. Please go to this link: https://helpx.adobe.com/support.html. In the lower right corner is the chat pod. You can request to be connected to the video queue to find our video specialists.

 

Thanks,
Kevin

Kevin Monahan - Sr. Community and Engagement Strategist – Adobe Pro Video and Audio
Participating Frequently
January 22, 2023

I have the solution !!!
It's very simple, just start Premiere as an administrator.
Right-click on the Premiere icon and run as admin.
That what

Participating Frequently
November 2, 2022

Of all the software packages that I have, Adobe CreativeCloud is the most disappointing, and I've been using Photoshop since version 1.0   I also have this problem and truthfully, IT ISN'T MY PROBLEM TO SOLVE.   If Adobe made automobiles, they would be in the repair shop 100% of the time.   This isn't the Adobe that I used to know.  This is some monstrosity now.  It does not work.

 

This specifically includes Premiere Pro, Photoshop, and Illustrator.  They all suck now. Thanks Adobe.

 

marcelov96479431Correct answer
Participant
November 2, 2022
Logré reparar el problema. Se soluciona creando otro usuario administrador
en windows. Al activar el nuevo uso de Adobe premiere termina funcionando.
Participating Frequently
November 2, 2022

Gracias Marcelo. La solución funcionó para mí también. Algo está terriblemente mal con este software si uno tiene que crear un nuevo usuario para solucionar un problema. Adobe debería dejar de actuar como si esto no fuera un ERROR, porque lo es.