We have seen how to activate Windows online and how to activate Windows Enterprise Edition using slui.exe. There are two ways to activate Windows. First, via the Internet and second, by phone. Today, we will see how to activate Windows 11/10 by phone. We will also show you how to find out the telephone numbers of Microsoft Office in your region you need to call in order to activate your copy of Windows.
Activation is the initial process that determines whether a Windows installation on a PC is properly licensed and genuine, and it’s quick and easy. It is different from Registration in that Activation ensures your copy of Windows is used in accordance with the Microsoft Software License Terms, whereas Registration is the process of entering information to sign up for product support, tools, tips, and other product benefits.
UPDATE: Microsoft has retired phone-based activation for Windows and Office wef December 3, 2025, replacing it with an online portal that requires signing in with a Microsoft account.
“Support for product activation has moved online.”
Calling the activation number no longer connects you to the automated system.
How to Activate Windows 11/10 by Phone
If you have disabled Auto-activation in Windows and you wish to activate Windows 11/10 by phone, open the Run box, and type slui.exe 4 to open up a box that will let you activate your Windows via the telephone.
Select your country from the drop-down menu and click Next.
You will see some toll-free phone numbers which you can call. You will be required to provide the numbers listed in Step 2 when prompted. Their representative will, in turn, provide you with a Confirmation ID, which you will need to enter. Once done, click on Activate to activate your copy.
Once activated, you can view the Licensing Status and Activation ID of your Windows OS with slmgr.vbs.
You can follow this procedure for the activation of any version or edition of Windows.
NOTE: If your Windows 11/10 is activated with a digital license linked to your Microsoft Account, running slui.exe may open the Settings > Update & security > Activation settings box. Running slui.exe 4 may open up nothing.
Read: This copy of Windows is not genuine.
To start the Product Activation Wizard in Windows 8.1 and Windows 8, open the Charms bar > Settings> Change PC Settings > Activate Windows > Activate by phone.
To start the Product Activation Wizard in Windows 7, Start > right-click Computer > Properties > Activate Windows now > Use the automated phone system to activate.
Microsoft Volume Licensing Activation Centers Worldwide Telephone numbers
If you are a Microsoft Volume Licensing customer and want to activate your Windows by phone, you can refer to this list of call centers and support phone numbers. Call these numbers to activate your Volume License by phone. The numbers in the first or middle column are Toll Calls. The second or right column below are Toll-free numbers.
| Australia | (61) (2) 9870 2131 | 1800 642 008 |
| Canada | (716) 871 2781 | (888) 352 7140 |
| India | (91) 80 4010 3000 | 1800 11 11 00 or 1800 102 1100 |
| United Kingdom | (44) (203) 147 4930 | (0) (800) 018 8354 |
| United States | (716) 871 2781 | (888) 352 7140 |
To see the full list of Microsoft Volume Licensing Activation Centers Worldwide and their Telephone Numbers, visit Microsoft.
If you are unable to activate your copy of Windows, you may want to refer to this post on troubleshooting the Windows Activation States. This post will help you if the Microsoft Volume Licensing login is not working for you.
