7 Ways to Fix “This Installation Is Forbidden by System Policy” Error on Windows
While installing some files on Windows, you might see an error message that reads, “This installation is forbidden by system policy.”
Is this error appearing on someone else’s device? If so, you need to ask for permission before proceeding with these tips. That’s because some users disable installations to protect their devices from security threats.
Is the error message popping up on your own Windows device? If so, chances are that you’ve configured some settings unknowingly. Otherwise, the issue is caused by some bugs on your device.
Now, here’s how you can tackle this “installation” issue on Windows.
1. Enable the Windows Installer Service
You’ll likely run into various installation issues if the Windows Installer is disabled. In fact, you could even struggle to remove apps from your PC if this tool is disabled.
So, you could resolve the “installation is forbidden by system policy” issue by ensuring that the Windows Installer is enabled. Here are the steps you need to follow:
Next, click theWindows Installer Startup typedropdown menu and selectManual. From there, press theStartbutton to enable the service. Finally, clickApplyand then clickOKto save these changes.
2. Configure Settings in the Local Group Policy Editor
You can also use the Local Group Policy Editor (LGPE) to tackle this issue. However, this method will only be useful if you use Windows Pro, Enterprise, and Education editions.
If you’re using Windows Home, you may check out some tips onhow to run the LGPE on Windows Home.
Now, here’s how you can fix the “installation is forbidden by system policy” error using the LGPE:
SelectDisabledorNot Configuredin the top-left corner. Finally, pressApplyand then pressOKto save these changes.
From there, apply the same settings to theProhibit User Installs and the Prohibit removal of updatesoption on the LGPE.
3. Use Microsoft’s Program Install and Uninstall Troubleshooter
The Microsoft Program Install and Uninstall Troubleshooter could also help—especially if corrupted Registry keys cause the issue at hand.
So, here are the steps for running this tool:
From there, select the problematic app and then clickNext. If you can’t find the faulty app on the list, click theNot listedoption and manually search for the program. From there, follow the on-screen steps to finalize the process.
4. Install Your Apps in Safe Mode
Installing your apps in safe mode could also help tackle the “installation is forbidden by system policy” error. This method could be helpful if faulty software programs cause the error.
Here are the steps for installing apps in safe mode:
On the next screen, click theAdvanced optionsand select theStartup Settings. Finally, press theRestartbutton and click theF4key to boot your PC into Safe Mode.
If you no longer run into the error, it’s safe to say that a faulty software program or a device driver is causing the issue.
5. Isolate Faulty Programs by Performing a Clean Boot
If you suspect some faulty programs cause the issue, you canperform a clean boot. This method helps isolate the programs that may be causing this error and other system issues.
The device boots up with all third-party applications disabled when you perform a clean boot. Also, the clean boot feature ensures that only a few critical drivers are running when you start the device. So, this process ensures that there are no interruptions when you install or uninstall software programs.
If faulty drivers cause the issue, you simply need to update or re-install those drivers. Otherwise, if a faulty app causes the problem, you can remove it and its residual filesusing a third-party uninstaller.
6. Re-Register the Windows Installer Service
Re-registering the Windows Installer service might sometimes turn out to be the best solution. So, here are the steps for re-registering this tool:
When this process is complete, type the following command and pressEnterto re-register the Windows Installer:
Wait for the process to complete, and then restart your device to save these changes.
7. Configure Settings in the Registry Editor
As a last resort, you could resolve this issue by configuring a few settings in the Registry Editor. However, be sure toback up the Registryfirst before you proceed.
Now, here’s how you’re able to tackle the issue at hand using the Registry Editor:
Set theValue datato0(zero) and then pressOK. Close theRegistry Editorand then restart your device to save these changes.
Install Apps on Windows Without Any Limitations
Windows installation errors can be pretty frustrating. Just when you’re about to download a cool app, you come across error messages such as “This installation is forbidden by system policy.”
The good news is that you can solve most installation issues with the Microsoft Program Install and Uninstall Troubleshooter. Otherwise, the other solutions we’ve covered should help you tackle the issue at hand.
Try these trusted resources next time you need to grab a free app for Windows.
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