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You require permission from TrustedInstaller to make changes to this folder (Fixed)

This tutorial will show how to gain access and delete folder that cannot be deleted with a message “Folder access denied. You need permission to perform this action. You require permission from TrustedInstaller to make changes to this folder”.

TrustedInstaller permission required error

I should mention that those folders that require TrustedInstaller permission usually contain important Windows files, so you better be careful when deleting them.

Instructions apply to Windows 10, Windows 8.1 and Windows 7.

How to get permission from TrustedInstaller to delete a folder

It’s quite simple to delete such folders you just need to become an owner of the folder and gain the necessary permissions. Here are the steps you should follow to do so:

  1. Right click on the folder and select “Properties” from context menu. Then open “Security” tab. Folder security options
  2. Click “Advanced” button.
  3. In “Owner” field click “Change” to change folder owner from TrustedInstaller. Change folder owner from TrustedInstaller
  4. Click “Advanced” button in “Select user or group” window. Advanced User Settings
  5. Click “Find now” button then select your user name from the list. Click Ok, then Ok, again. Select User
  6. Check “Replace owner on subcontainers and objects”. Click Ok. Apply new folder owner
  7. Once again click “Advanced” button in folders’ security options.
  8. Click “Change permissions” then “Add” button.
  9. Click “Select a principal” and find your user name like in step 5.
  10. Check “Full Control” in permissions. Click Ok. Set full access to folder
  11. Check “Replace all child object permission entries with inheritable permission entries from this object”. Change folder permissions
  12. Click Ok button.

Once you’ve done all the steps, you are now able to delete the folder and you will not see any Acess Denied messages saying that you require permission from TrustedInstaller.

Comments (27)

  • Nafnaf

    I can’t follow step 8-9-10. I don’t see the buttons you mention. Could you please add screenshots as with the other steps? Thanks, I’m trying to delete my windows.old folder after upgrading from 7 to 10.

    Reply

    • Nacho

      Deleting widnows.old is easier, you just have to go to mypc and right click the drive where that folder is located, click on properties, then in free space. Once there, you just have to click the “Clean system files” (or something like that, I have my windows in spanish), make sure the “Windows old installations” is checked, accept and you are ready to go 😀
      You can check for a guide on google as well, I didn’t need to get permissions like this to delete that folder. Best of luck!

      Reply

  • Anmol

    Thank you !! It worked

    Reply

  • Yusuf Choudhry

    Very precise instructions. Worked. Thanks.

    Reply

  • Tom

    Thank you sooooo much. this one worked for me after much frustration

    Reply

  • Rick Towe

    I did it all just as instructed…I still get the box saying I need permission from TrustedInstaller to make changes to this folder. I have upgraded from Windows 7 to Windows 10…I have a Asus gaming laptop with 1 SSD hard drive with all my programs on it…I have 2 375GB hard drives for files. My SSD drive is almost full…I copied the “Program Files” and “Program Files (x86)” folders to the SDATA (D) drive to make room…but I can’t delete the first folders off of the OS (C:) drive…please advise! Thanks.

    Reply

  • Oshanda

    Thnks a lot. It’s Done

    Reply

  • Ann Watkins

    This worked like a charm! I used this method to finally get rid of theme pictures and background pictures that Big Brother Windows had decided I shouldn’t be able to delete if I want to. I knew it had something to do with permissions but didn’t know all the steps to change them. Pet peeve of mine…I hate uninstallable apps (that I will never use) on my cellphone and the same goes for my computer. Thank you again for providing such a clear and easily followed guide to getting my administrator permissions when needed.

    Reply

  • Audrey

    Wonderful! How can this be written as a script? It is not feasible to go through these steps for the hundreds, or thousands, of useless folders on a US English windows machine, such as anything containing “fr-fr”, “it-it”, “cs-cz” etc.

    Reply

    • Fix PC New York

      I don’t know : )
      I guess you can apply it to the folder that contains all that stuff inside, delete unnecessary ones, then turn owner back to trustedinstaller. but it might break somethin within windows.

      Reply

  • grayorg

    worked great! Thanks!

    Reply

    • ahmed gaber

      thanks bro, this really helped me alot

      Reply

  • Richard Maddock

    Thanks for the clear instructions, this has bugged me for years.

    Reply

  • imbobbio

    Once I followed the directions to the letter i was good to go. Thanks

    Reply

  • Mahor

    Perfectly worked! Deliberately explained with pictures. Impossible to miss any killing detail.
    Thanks.

    Reply

  • Zander

    Thank you kindly! Worked a treat

    Reply

  • Boban

    much appreciated

    Reply

  • Sue

    I have recently purchased a new ASUS K31ADE computer that came with Windows 10 pre-installed. I downloaded my freestanding email programme, eM client, which I’d used happily for months on my old, Windows 7 computer. It worked fine for a few days then stopped, saying it couldn’t find/access the server. I was also unable to set it as the default email programme. I don’t need Windows Mail as I have put a link on my desktop that takes me straight to my web-based Live account, so decided to try to delete Windows Mail as per your instructions above.

    At Stage 5 there was no Fix PC file offered in the list to choose from on clicking Find now. There were no Desktop files with LD5G4BOH in the name. The nearest thing I could find was Administrators (DESKTOP-06H5RG4\Administrators so I clicked on that. All seemed to go Ok then until I went back to the Windows Mail folder and tried to change permissions. It wouldn’t let me!

    I had taken the precaution of setting a Restore Point before I did any of this, but when I did the restore and clicked again on Properties in the Windows Live folder it went straight to the Security page and I couldn’t find any mention of an owner anywhere!

    Please can you help? I don’t like Microsoft’s habit of trying to bully people into using its products and I’m not going to give up until I’ve got this doing what I want, not what they want!

    Thanks.

    Reply

  • THM

    It worked like a charm.

    Super step by step instruction

    Thank you

    Reply

  • Robert

    Thanks a lot. It worked 100%. Keep up the good work!

    Reply

  • Peg

    When I get to the point where I’m at the “Owner” tab, there IS NO Option to hit “Change”. It simply isn’t there! What do I do now?

    Reply

  • Sue

    I successfully changed the owner of a folder I want to delete to my own name. Then when I went back to try to delete it, I was told I needed permission from myself to do so! The computer obviously doesn’t recognise me as me, but the name I used (DESKTOP-06H5RG4\My name) was copied and pasted from my computer spec! What do I do now?

    Reply

    • Fix PC New York

      Give yourself full access permissions on the Security tab in folder options

      Reply

  • Helen

    Fantastic. Thanks. All because a Windows option does not in fact do what it claims to do.

    Reply

  • stringed

    On my my laptop running Win10 Home, when I Right click on the folder and select “Properties” from context menu, I can’t even get it to open up a window where I can wrest control over the folder away from TrustedInstaller.

    I’m trying to overwrite a defective copy of cleanmgr.exe on this pc with a good cleanmgr.exe from another Win10 pc. As soon as I click on the Properties line on the System32 folder where Cleanmgr sits, the Properties box disappears. My pc does NOT even allow me to open a folder’s properties!

    What now?

    Reply

  • rksmall

    Thank You! This method worked flawlessly!

    Reply

  • Stan

    Worked like a charm, thank you!

    Reply

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