Error "This setting is prohibited by the policy set by the system administrator" - all methods to solve the problem

Installing new software usually goes without problems, but sometimes due to errors it becomes impossible. Many users when trying to install software encountered a new problem: "This installation is prohibited by the policy set by the system administrator." Sometimes code is displayed that should help users understand the cause of this problem. Such an error is not critical at all. You can get rid of the problem by one of several methods. They are all pretty simple. Follow them in turn until you get rid of the annoying reminder.

Correcting the error "This installation is prohibited by the policy set by the system administrator."

Disabling policies that prevent the installation of programs

In some cases, when you run the installation file, Windows issues a warning and a security message. They can be disabled during the installation of the problem software.

IMPORTANT. Immediately after the end of the manipulations, it is necessary to return this parameter to its former place. Otherwise, the computer will remain unprotected.
  • Open the control panel by performing a search in the Start menu.
  • Switch the “View” option to “Large Icons”, and find “User Accounts”.
  • Open the item and click on “Change user account management settings”.

You will notice that on the slider you can choose several options. If your slider is set at the top level, the number of such warning system messages will be maximum. In this case, the error described above often occurs precisely because of the control of user accounts. If the installation is prohibited based on system policy, first you need to disable the policies that prohibit the installation of programs. Try reducing the value by one if it is at the top mark.

Check if it helped. Repeat this process if the error still appears or is completely disconnected from UAC. You can immediately set the minimum value and go to the installation of the problem software. Regardless of the result of the installation, be sure to return the slider to its previous position.

View installation policies in the Local Group Policy Editor

Error caused by prohibiting security settings, and it will have to be edited.

  • Run - gpedit.msc.
  • Computer Configuration / Administrative Templates / Windows Components / Windows Installer.
  • Go to the right side of the screen.
  • Double-click the “Disable Windows Installer” option, check the box next to the “Enabled” option and set the “Disable Windows Installer” option to “Never”.

Restart your computer to save these changes and see if you can install the program.

Using Registry Editor

If you edit the wrong key by mistake, the consequences can be pretty serious. Therefore, if you are not confident in your abilities, it is better to postpone this method for later. If this setting is still prohibited by the administrator policy, proceed to editing the registry.

  • In the registry editor, follow the directory:

HKEY_LOCAL_MACHINE / Software / Policies / Microsoft / Windows Installer

  • Right-click in the empty area / Create DWORD (32-bit).
  • Rename to DisableMSI and set the parameter to 1.
  • Go to the next location and browse the list until you find the software you tried to install on your computer.

HKEY_CLASSES_ROOT Installer Products

  • The key you need will be presented as a folder. Click on it with the right mouse button and select "Delete".

After that, try installing the software again and see if an error message appears.

Additional methods to fix the error "This installation is prohibited by the policy ..."

Just try running the installation file as an administrator. This is the most primitive decision, but, nevertheless, in many cases it worked. Therefore, before trying to perform more complex fixes, make sure that you try to start from the admin and save yourself a couple of hours. Find the installation file of the program you need and right-click on it. In the context menu, select the "Run as administrator" option and accept all pop-up warnings that may appear.

Use a “hidden” administrator account

The emergence of such an error means that you are not actually the administrator of your PC, even if your account is called an administrator. This method is to run the problem software from the admin account, and then log in again under the usual login.

  • Click Start or the Win key and type cmd (or command line).
  • Click it with the right mouse button and select the “Run as administrator” option (or select the program using the arrows from the keyboard and launch it with the key combination Ctrl + Shift + Enter).
  • Copy and paste the following command at the command prompt and press enter.

"Net user admin active: yes".

  • After a couple of seconds, the message "Command completed successfully."
  • Copy and paste the following command at the command prompt and press enter.

"Net user administrator".

  • Instead, enter your account password to login.
  • Log in to this administrator account and wait a couple of minutes before everything is ready.

Now you can try to restart the computer, log in to the new administrator account and run the installation file. After you are finished with a hidden administrator account, you can disable it again by opening the command prompt as admin and typing the following command:

"Net user admin active: no".

After completing all these steps, the error "This installation is prohibited by the policy set by the system administrator" will no longer interfere with the normal operation of your PC.