• February 22, 2024

TrustedInstaller.exe – what is this service and how to remove or disable it

Software developers are implementing ever more reliable systems for the integrity and confidentiality of user data. For these purposes, the hero of today’s article was created, which is an exhaustive answer to the question: “What is TrustedInstaller?”.

TrustedInstaller – what is this service and how to disable it

It is the security module of the Windows operating system (OS). Part of the Windows Resource Protection package that debuted on Vista. The main function is to keep system files from unexpected modifications. Thanks to it, most viruses cannot penetrate system components. Largely because of this, separate, more vulnerable applications, for example, a browser, become their victims.

Do not confuse the TrustedInstaller service with the TrustedInstaller exe executable. They have a common name, but slightly different functions. The file is designed to control the processes of updating OS components. TrustedInstaller.exe can be found in the Task Manager, sometimes it can put a heavy load on the system. The most common problem when trying to change or run files is the message “Request permission from TrustedInstaller”, which does not allow you to complete the required manipulations. These nuances will be discussed in more detail later in the text.

It is impossible to unequivocally answer the question: “How to disable the TrustedInstaller service?”. At the most global level, it is possible to partially restrict the operation of this system component. You can make it so that it does not interfere with the operation you require. It takes a lot of work to disable and permanently remove a service. This is not particularly necessary, since in 99% of cases it is only necessary to get rid of the annoying notification on the screen, which does not allow starting the application or deleting the file.

general information

Principle of operation :

  • the service is the sole owner of all system files, not the user, even if he is the administrator of that system;
  • no one can be allowed to edit components until TrustedInstaller approves;
  • “Approval” is based on discrete access lists – a table is created for each protected file, in which the access rights for certain groups of users are clearly spelled out;
  • if some virus or installer tries to write something to the protected folder, then TrustedInstaller will check if there is an “order breaker” in the access table for this directory. And if it is not there, then further access to the folder will be prohibited.

Component location

To better understand what the TrustedInstaller is in Windows 7, in which it first appeared, let’s indicate its location: C: Windows servicing. You will not be able to delete anything from there, since the system will not let you.

Why the service is consuming too many system resources

Let’s figure it out – TrustedInstaller what does it load the processor? There is a very small chance that the security service takes up all the free RAM and boots the PC to its fullest. It’s another matter if it’s an executable file of the same name – there is information that sometimes it behaves in this way. It can also create a lot of unnecessary files. The CBS.log grows especially strongly. This behavior is caused by an internal failure of the update service or permanent damage to downloaded updates. Use generic approaches to troubleshoot:

  1. Disable automatic OS updates. Sometimes you need to activate a manual update and install the most important updates yourself.
  2. Remove previously downloaded and installed updates. After such a rollback of the system, install the updates again.
  3. Check your system for viruses. Make sure not to accidentally install 2 antivirus products that work at the same time.
  4. Make sure the integrity of the system files. To do this, hold down the Win + R combination and enter the sfc / scannow request.

Learn that the TrustedInstaller service or executable file should not and should not be removed, as this will greatly affect the security of the OS.

How do I get permission from TrustedInstaller to operate on folders and files?

To do this, you need to register yourself more rights in the properties of the folder that contains the files you need.

Setting permissions

Do the following:

  • right-click on a file or directory => “Properties”;
  • go to the top in the “Security” tab, and then click on the “Advanced” button;
  • in the new window at the top there will be a line “Owner: Trusted Installer”, click on “Change”;
  • in the new window, click on “Search”, a list will open below, in which you click on the name of your account in the system;
  • close the current window by clicking on “OK”, do the same in the window that appears after that;
  • the notification “Owner: Administrators Change owner …” may appear – check the corresponding box and confirm the edits by clicking on “OK”.

After that, you need:

  • right-click on a file or directory => “Properties”;
  • go to the top of the “Security” tab, and then click on the “Advanced” button;
  • make sure that your Windows account is present in the “Permission items” block;
  • if not, then click on “Add”, in a new window click on “Select a subject” => select your profile, check the box next to the line “Full access”, save all edits by clicking on “OK”;
  • return to the previous window: check the box next to the line “Replace all permission entries …”

Why TrustedInstaller won’t let you delete a folder

Because access to modify the content is not granted. This is because this folder contains files that are important to Windows. Without them, the system will not be able to work stably and will most likely require missing drivers, instructions and everything else that could be removed.

To get permission from the Trusted Installer to remove some components, you must disable this service in relation to the folder where such components are located. Why exactly this way? Disabling TrustedInstaller completely is highly undesirable, as the system’s vulnerability to malware increases greatly.

How to delete files protected by TrustedInstaller

To work around the situation where TrustedInstaller prevents you from deleting a folder or individual files, follow these steps:

  • right-click on a file or directory => “Properties”;
  • go to the top in the “Security” tab, and then click on the “Advanced” button;
  • in the new window at the top there will be a line “Owner: Trusted Installer”, click on “Change”;
  • in the new window, click on “Search”, a list will open below, in which you click on the name of your account in the system;
  • close the current window by clicking on “OK”, do the same in the window that appears after that;
  • the notification “Owner: Administrators Change owner …” may appear – check the appropriate box and confirm the edits by clicking on “OK”.

After these manipulations, the “owner” of the folder or file will not be Trusted Installer, but your system account.

How advisable is the shutdown?

Don’t forget TrustedInstaller is primarily a tool that provides unauthorized access to internal Windows files. It is best to return to the original position after changing the files you need.

TrustedInstaller – ways to disable

There are several approaches, but it is advisable to turn everything back on after turning it off.

Partial disconnection method

This involves replacing TrustedInstaller as owner with your account and setting the appropriate permissions. To do this, do the following:

  • right-click on a file or directory => “Properties”;
  • go to the top in the “Security” tab, and then click on the “Advanced” button;
  • in the new window at the top there will be a line “Owner: Trusted Installer”, click on “Change”;
  • in a new window, click on “Search”, a list will open below, in which you click on the name of your account in the system;
  • close the current window by clicking on “OK”, do the same in the window that appears after that;
  • the notification “Owner: Administrators Change owner …” may appear – check the corresponding box and confirm the edits by clicking on “OK”.

Complete shutdown method

Do the following:

  • hold down the key combination Ctrl + Shift + Esc;
  • in the window that appears, go to the top to the “Services” tab;
  • in the right pane, look for the line “Background Intelligent Service”, right-click on it => “Stop”;
  • perform similar actions with respect to the lines “Update Center …” and “TrustedInstaller”.

You need to turn everything back on in the same way: “Properties” of the stopped service => “Start”.

How do I turn the service back on?

Turning on everything and returning to the original position is not difficult. If you just disabled the service for some files or directories (you have set your own account as the owner), then you need to do this:

  • right-click on a file or directory => “Properties”;
  • go to the top in the “Security” tab, and then click on the “Advanced” button;
  • in the new window at the top there will be a line “Owner: (your account name)”, click on “Change”;
  • in the window below the line “Enter the names …” copy this: NT SERVICE TrustedInstaller and click on “OK”;
  • a window will appear “Owner: Administrators Replace owner…” – check the corresponding box and save everything by clicking on “OK”;
  • TrustedInstaller protects the file or folder again.

Let’s summarize:

  • Trusted Installer helps protect your PC from viruses.
  • If it interferes with performing some action, then first change the owner of the file (folder), and then set yourself all the permissions to access the data.
  • After making changes, it is recommended to return everything to its original position for reliability.

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