TrustedInstaller.exe is a Windows Module service which is an integral part of Windows Resource Protection (WRP). This restricts access to certain core system files, folders and registry keys that are part of Windows installation. TrustedInstaller is a built-in user account that has all the necessary permission to access files and folders in the Windows.
What is the work of Windows Resource Protection (WRP)?
The WRP protect Windows files with extension .dll, .exe, .oxc and .sys files from being modified or replaced. By default, these files extensions can only be modified or replaced by the Windows Module Installer service, TrustedInstaller. If you change or customize the default TrustedInstaller settings, then you’re putting your system at risk.
Sometimes you need to change the ownership of the file to modify or replace system files. Still, once you are done with the customization, there is no option to give back the permission to TrustedInstaller, and sometimes this may lead to the system being unstable as it no longer can protect the system core files. This guide will show you how to restore TrustedInstaller as File Owner in Windows with the below-listed steps.
Make sure to create a restore point just in case something goes wrong.
1. Right-click on the file, folder or Registry Key to restore the ownership to default TruestedInstaller and then click Properties.
2. Now switch to the security tab and then click the Advanced button near the bottom.
3. On the Advanced Security Settings page click Change under the Owner.
4. Next, type “NT Service\TrustedInstaller” (without quotes) under Enter the object name to select and click on Check Names then click OK.
5. Make sure to checkmark “Replace owner on the subcontainers and objects” under Owner and again checkmark “Replace all child object permission entries with inheritable permission entries from this object” in the bottom.
6. Click Apply, followed by OK.
Now if you have granted Full Control to your user account then you also need to remove these settings as well, follow the below steps to do that:
1. Again right-click on the same file, folder or registry key and select Properties.
2. Switch to Security tab and click the Advanced button near the bottom.
3. Now on the Advanced Security Settings page select (highlight) your account under Permissions entries list.
4. Click Remove and then click Apply followed by OK.
Recommended:
That’s it you have successfully learned How to Restore TrustedInstaller as File Owner in Windows 10 if you still have any queries regarding this post feel free to ask them in the comment’s section.
Compare realistic side hustles for 2026 by startup cost, fees, flexibility, and income control, with current tax and scam guidance from official sources.
Upgrade your home office ergonomics with current OSHA and NIOSH guidance on chair fit, monitor height, laptop setup, lighting, and movement.
Learn why emotional intelligence matters in leadership, where it helps most, how to strengthen it, and how to tell whether your approach is working.
A practical roadmap for moving into tech without a degree: choose an accessible role, build job-ready skills, prove them with projects, and use hiring feedback to improve.
Build a credible LinkedIn personal brand in 2026 with current profile, content, newsletter, analytics, verification, and visibility guidance from LinkedIn.
Quiet quitting and quiet firing are catchy labels, not diagnoses. Learn what is verified, what depends on context, and what employees and managers can do next.
Fractional executives offer senior leadership without a full-time hire. Learn when the model works, what to ask, and the risks to manage.
Prepare a stronger Q4 raise request with current wage data, timing options, compensation tradeoffs, and scripts for yes, partial, or no outcomes.
Choose a high-income skill you can realistically start before 2026 ends, with current pay data, learning priorities, and a practical self-check.
Build a hybrid work schedule around tasks, team overlap, and measurable outcomes. See sample patterns, warning signs, and when to adjust your plan.
