What Is Slui.exe? Is Slui.exe Process Safe On Windows PC?

Slui.exe

When we use Windows on our computers, there are several processes that run in the background meanwhile.
And few of those processes are essential to run the computer smoothly by the Operating system.
On the other hand, there are certain applications, which are simply part of some other programs.
One particular Windows process that many Windows users are unfamiliar with is the slui.exe process that always runs in the background.

What Is Slui.exe? Is Slui.exe Process Safe On Windows PC?

What Is Slui.exe?

Microsoft Windows is an operating system and the Software Licensing User Interface is a Microsoft Windows activation/updating command line program.
Slui.exe is a legitimate and essential Windows file that should not be removed.
The genuine slui.exe file is a software component of Microsoft Windows by Microsoft.

One of the lesser-known system processes that run in the background on a Windows 10 PC is slui.exe.
This process is responsible for Windows 10 license activation, including checking if your license is genuine.
Each Windows 10 PC requires a license that grants the user access to all of Window’s features.

Is It Safe To Use slui.exe ?

A window can run without a license but that is for a short period of time, with the passage of time, access to features will begin to degrade if a license isn’t activated.
Failure to activate Windows 10 (or use a genuine license key) will eventually result in Windows no longer working until you resolve the situation. 
It is one of the most advanced feature that is used by Microsoft to protect its revenue.

Since a Windows license costs money, any PC without a license results in lost earnings for Microsoft.
The same applies to any Windows PC user that tries to bypass these licensing restrictions using activation cracks or online license keys.

What Is Slui.exe? Is Slui.exe Process Safe On Windows PC?

This is where slui.exe comes in the picture.
This process will run when you try to change your Windows 10 product key or if you attempt to activate Windows. Windows may also run this process automatically at any point to check that your license is genuine, active, and ready to use.

So if you have a genuine version of Windows, you have nothing to worry about the slui.exe process.
But if you have used online activating tools or applications to activate your Windows, you might face some issues. Most of these activation tools come with malware, and it might replace the original slui.exe process in your system. This eventually may lead to your system crashing down, which will mean that you will have to reinstall Windows on your computer all over again.
You might even lose all your data if you have not backed up all of it.

How to Check The Authenticity Of slui.exe?

System processes are often targeted by malware, and if you are having problems with your Windows activation, you should definitely take a look at the slui.exe process.
Often online activation tools also can infect a system by pushing out malware via the slui.exe process.

To check the status of the slui.exe process running on your computer, follow the below-given process:

  • First, you have to open up the Task Manager. For that, right-click on the taskbar and select “Task Manager.”
What Is Slui.exe? Is Slui.exe Process Safe On Windows PC?
  • Then go to the Details tab and look for slui.exe here.
  • Once you find it, right-click on it and choose “Open file location.”

If this process is legitimate, it will show up a Windows Explorer window with this directory “C:\Windows\System32.” If it opens up any other directory, it is definitely malware infecting the slui.exe process on your Windows computer.
Here, you can use any third-party antivirus program to scan your entire computer for malware and clear it out.

How To Use slui.exe To Activate The License Key Or Change It?

The slui.exe process becomes active when you attempt to activate your Windows copy or change the activation key.
So if you want to activate Windows or any other thing related to it, you will need to activate this process.
There are two ways to do it:

  1. Firstly you can directly run this process using the Run dialog box.
  2. Or you can manually go to the activation section in Windows settings.
To launch slui.exe Using The First Option That Is Run Dialog Box:
  • Press Windows key + R to open up the Run dialog box.
  • Enter “slui.exe” in the dialog box and click on Ok.
  • A new window will now open up asking for a Windows product key.
  • If you are on a trial version, then enter your product key here. And if you are looking to replace an existing product key, you can do that here too by entering the new product key and then clicking on Next after that.
To Launch slui.exe Using Windows Settings:
  • Press Windows key + X and then select “Settings” from the list of options that show up.
  • In the settings window, choose Update & Security and then click on the Activation tab on the left sidebar of the settings window.
  • Now in the activation window, you will see different options depending on your configuration.
    If you are on a trial version, you will see the option “Enter a product key.”
    And if you already have a product key entered here, you will see the “Change product key” option.
    Click on the one that shows up on your device.
  • Now, a new window will now open up asking for a Windows product key.
  • If you are on a trial version, then enter your product key here.
    And if you are looking to replace an existing product key, you can do that here too by entering the new product key and then clicking on Next after that.

How to Disable or Remove Slui.exe from Windows 10 ( We Don’t Recommend It)

If you’re thinking about trying to remove, disable, or otherwise interfere with the slui.exe system process on Windows 10, our advice is simple: don’t

Processes involved in the activation and licensing of Windows 10 (including slui.exe) are generally protected, considered essential, and shouldn’t be interfered with.
Doing so could cause Windows to revoke your licensing and restrict your access to features.
A non-activated Windows PC isn’t very useful.
While there are online tools to help bypass genuine activation, these aren’t recommended as they breach the Windows terms of use and can damage your Windows installation files.

There’s no way around it—slui.exe and other processes involved in Windows licensing and activation are here to stay. While you can try to bypass or disable it, doing so puts your PC at risk and shouldn’t be attempted under any circumstances.

However, if you still wish to do it, then follow the below-given process:

The removal of the slui.exe process is dependent on how you installed Windows on your computer.
If you used a Windows installer, you would have to go to the apps and features page in Settings and then uninstall it like any other program.

  • In the first step, you have to press Windows key + I to open up Windows Settings.
  • Click on Apps.
  • Then click on the Apps and features tab in the left sidebar.
  • Search for the program for slui.exe or the software name Windows-aktiveringsklient in the search bar above the list of installed apps on your computer.
  • Once you find it, click on Uninstall, and it will be removed from your computer.

If you have not used the Windows installer to install Windows:

You will have to find the directory where the slui.exe application file is stored.
Once you find that file using Windows search, you will also find a uninstall application program for slui.exe with a name similar to “slui.exe_uninstall.exe” in that same directory.
Run that application file to uninstall slui.exe from your computer.

However, we must bring it to your notice that post the uninstallation process, your system might stop working entirely. So if you are going for the removal of the slui.exe file, then be prepared to have a crashed system after that.

Feel free to discuss your queries in the comment section with us.

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