You need permission from TrustedInstaller to make changes

Follow the Quick and easy steps mentioned below will surely help the users who are looking for the solutions for you need permission from TrustedInstaller.

1. Go to 'File Explorer' & then go to the file which is showing the error - you need permission from trustedinstaller and right click on the same and select 'Properties'

2. Now, search for 'Security' tab & click on the 'Advanced' button.

3. Window of 'Advanced Security Setting' will pop up, and then click on the 'Change' button.

4. After all the above steps, you need to enter the object name and click on the 'Check Names' button & then the Windows will automatically complete the full object name. Click on OK.

5. Tick mark on the checkbox ' Replace owner on sub containers and objects' and click on OK.

6. Click on the 'Add' button in the 'Advanced Security Setting' window.

7. Tap on 'Select a Principal' button and repeat step 4 to type your object name again.

8. Tick mark the checkbox of 'Full Control' located in the 'Basic Permissions' tab and then click OK & exit the current window.

9. Finally, click on 'OK' & 'Apply' button located in Advanced Security Settings.

By performing the steps as mentioned earlier, the users can get rid of the error message you need permission from TrustedInstaller windows 10.

URL Reference- https://promptresolve.com/operating-system/how-to-get-permission-from-trustedinstaller-in-windows-10-8-7/