Microsoft Windows 11 Pro Professional - Genuine Lifetime Product Key 64 Bit

Windows 11 Pro system requirements

How to check compatibility for Windows 11 Professional

Checking your device's compatibility with Windows 11 Professional is an essential step. Fortunately, there are several tools available to simplify this process.

Method 1: Official ‘PC Health Check’ tool

1. Go to the official Microsoft website.
2. Download the ‘PC Health Check’ tool.
3. Install and run the tool.
4. Click on ‘Check now’ and the software will tell you if your PC is compatible.

Method 2: Manually checking your BIOS/UEFI settings

• Access the BIOS by pressing the corresponding key (usually F2, Del, ESC) when starting your PC.
• Check that the TPM 2.0 and Secure Boot settings are enabled.
• If your device does not have TPM, it is most likely not officially compatible.

Method 3: Using WhyNotWin11

Another popular open-source tool is WhyNotWin11. It provides a detailed assessment of each component that could cause incompatibility.

Bonus tip: Even if your device is not officially supported, there are ways to install Windows 11 Pro on older hardware (not recommended by Microsoft). However, for business or professional environments, it is best to stick to the official specifications to ensure reliability and long-term support.

How to Download Windows 11 Pro

Here are the options available for obtaining the operating system:

1. Windows 11 Installation Assistant

Ideal if you want to upgrade a compatible PC from Windows 10 to Windows 11 Pro while keeping your files and settings.

How to proceed:

1. Visit the official Windows 11 download page: microsoft.com/software-download/windows11
2. Click ‘Download now’ under the Windows 11 Installation Assistant section.
3. Run the downloaded file and follow the instructions to complete the update.

2. Creating installation media (Media Creation Tool)

Perfect for performing a clean installation or installing Windows 11 Pro on another device.

How to proceed:

1. On the same download page, click ‘Download now’ under the Create Windows 11 installation media section.
2. Run the tool and choose whether to create a bootable USB stick or download an ISO file.
3. Follow the instructions to complete the media creation process.

3. Download the Windows 11 disk image (ISO)

This is useful if you want to create an installation DVD or mount the ISO on a virtual machine.

How to proceed:

1. Still on the download page, scroll down to the Download Windows 11 disc image (ISO) section.
2. Select the desired edition (Windows 11) and click ‘Download’.
3. Choose your language and click ‘Confirm’, then ‘64-bit Download’ to start the download.

How to install Windows 11 Professional from scratch

If you have purchased a new device or want to perform a ‘clean installation’, here's how to install Windows 11 Professional from scratch.

Main installation steps:

• Prepare installation media:

1. Download the Media Creation Tool from the official Microsoft website.
2. Insert a USB stick with at least 8 GB of space.
3. Launch the tool and follow the instructions to create installation media.

• Boot from the USB:

1. Restart your PC and access the BIOS/UEFI.
2. Set the boot priority to the USB stick.

• Install Windows 11 Professional:

1. Select your language, keyboard layout, and other preferences.
2. Choose ‘Custom: Install Windows only (advanced)’ for a new installation.
3. Select the disk where you want to install the operating system (you can also format it first).
4. Complete the installation by following the instructions on the screen.

• Activate Windows 11 Pro: you can enter the product key during installation or later from ‘Settings > Activation’.

Advantages of a clean installation:

• Optimised performance right from the start
• No unnecessary pre-installed software
• Better disk space management
• Less chance of future errors

Tip: Before you begin, always make a full backup of your important data. Once the installation is complete, remember to install all the latest drivers and configure your security settings.

How do I activate Windows 11 Pro after installation?

Activating Windows 11 Pro is simple and can be done in a few steps, either during or after installation. If you did not enter the product key during installation, you can do so later directly from the system settings.

Here's how to activate it manually:

1. Go to Settings > System > Activation
2. Click on Change Product Key
3. Enter a valid Windows 11 Professional code
4. Click Next and then Activate

If the code is valid and your PC is connected to the Internet, activation will occur automatically. Alternatively, if you already have a digital licence linked to your Microsoft account, the system may activate automatically after you sign in.

1. Is Windows 11 Pro better than Windows 10 Pro?

Yes, it offers a modern design, new productivity features and enhanced security thanks to mandatory support for TPM 2.0 and Secure Boot.

2. How much does Windows 11 Pro cost? Price and where to buy it at the best price

The list price of the Windows 11 Pro licence is €259.99, but at Mr Key Shop, you save up to 70%!

3. Can I upgrade from Windows 11 Home to Pro later on?

Absolutely. Simply purchase a Pro licence key from the Microsoft Store and follow the upgrade procedure without losing your data.

4. Does Windows 11 Pro support all legacy applications?

Most do, but some very old applications may not be compatible without compatibility mode or updates.

5. Is it safe to use Windows 11 Pro for business purposes?

Yes, it is specifically designed for business environments with tools for encryption, centralised management and data protection.

6. How do I activate Windows 11 Pro after installation?

You can activate it during installation or later in ‘Settings > System > Activation’, by entering your valid product key.

7. What are the most interesting features for businesses and professionals?

Windows 11 Pro includes numerous features specifically designed to meet the needs of businesses and professionals. The most important are: BitLocker for encrypting business data, Group Policy Editor for centralised control of settings across multiple devices, and Remote Desktop Access, ideal for remote working and IT support. In addition, it offers support for Azure Active Directory, which enables secure access using corporate credentials and simplified user management. Tools such as Microsoft Intune and Endpoint Manager enable remote device management and protection, whilst compatibility with Hyper-V and Windows Sandbox allows software to be tested in isolated environments. All of this makes Windows 11 Pro a comprehensive and secure solution for business environments of all sizes.

8. What accessibility features does Windows 11 Professional offer?

Windows 11 Professional includes a range of advanced accessibility tools, designed to assist users with visual, hearing or motor impairments. Key features include the speech reader, the magnifier, high contrast settings, voice dictation, real-time automatic captions and voice control. In addition, the on-screen keyboard and support for alternative input devices (such as eye tracking or switches) make the system usable even for people with limited mobility. All these options can be easily configured in the ‘Accessibility’ section of Settings.

9. Is Windows 11 Pro secure and how does it protect my privacy?

Windows 11 Pro is designed with multi-layered security that protects the system against viruses, malware, ransomware and sophisticated attacks. It includes advanced technologies such as BitLocker for disk encryption, Windows Hello for biometric authentication, TPM 2.0 for hardware protection and Secure Boot to prevent malware from starting up when the device is powered on. When it comes to privacy, the system allows for detailed management of app permissions and data collected by Microsoft, as well as the configuration of telemetry options. Furthermore, security and privacy tools can be centrally managed via Group Policy and Intune, making Windows 11 Pro an excellent choice, even for those who handle sensitive data as part of their work or business.

10. Where can I download Windows 11 Pro officially and securely?

You can download Windows 11 Pro directly from the official Microsoft website, using the Media Creation Tool or as an ISO file to create installation media (USB or DVD).

Available options:

• Microsoft’s official website

Go to microsoft.com/software-download/windows11

There you can:

1. Download the installation tool (Media Creation Tool)

2. Download the official ISO image

3. Use the Setup Assistant to update an already compatible PC

• Mr Key Shop

After purchasing the product key, you will receive download instructions via email, including a secure link to the Microsoft website.

11. Do Windows 11 Pro licences have an expiry date or any limitations?

All Windows 11 Pro licences are linked to your Microsoft account and not to a specific computer. This means that your Windows 11 Pro product key is perpetual: you can reuse it whenever you need to format or replace your computer.

12. What does Windows 11 Pro offer that Windows 11 Home doesn’t?

Windows 11 Pro includes all the standard features of Windows 11 Home, but adds advanced tools designed for security, business management and more powerful hardware. In short, it is the ideal choice for professionals, businesses and advanced users.

Advanced security features (exclusive to Pro)

• BitLocker Drive Encryption: encrypts the entire drive to protect data in the event of theft or loss of the computer.
• Windows Sandbox: an isolated, temporary environment for running untrusted software without risk to the main system.
• Windows Information Protection (WIP): helps prevent accidental leaks of corporate data.
• Microsoft Defender Application Guard: isolates untrusted websites and content using virtualisation-based security.

Tools for businesses, IT departments and experienced users

• Remote Desktop (host): allows you to access your PC remotely (and not just connect to others).
• Hyper-V: a virtualisation platform for creating and managing virtual machines.
• Group Policy Management: centralised management of settings and security policies across multiple networked PCs.
• Mobile Device Management (MDM) & Enterprise State Roaming: device management and settings synchronisation in an enterprise environment.
• Assigned Access / Kiosk Mode: locks the device to a single application (ideal for kiosks, points of sale, public terminals).
• Windows Update for Business: greater control over how and when updates are distributed to employees.

Improved hardware support

• Support for larger amounts of RAM: up to 2 TB of memory (compared to a much lower limit for Home).
• Dual-processor support: can utilise systems with two physical processors, useful in business scenarios.

Features available in all editions of Windows 11
Regardless of the version, Windows 11 includes:

• Modern interface with a centred Start menu and Snap Layouts for multitasking.
• Microsoft Store with apps, games and digital content.
• Pre-installed apps (Photos, Mail, Notes, etc.).
• Support for touch, pen and voice commands on compatible devices.
• Features based on artificial intelligence and integration with Microsoft services.

If you require advanced security, remote management or virtualisation features, or if you work in a professional environment, Windows 11 Pro is the recommended choice.

13. Is this a Retail or an OEM Windows 11 Pro key?

Retail. It links to your Microsoft account rather than to your motherboard, so you can reinstall it without limit and move it to a new computer by deactivating the previous one. An OEM key, which is what most very cheap listings are, stays bound to the first machine it activates and disappears with that motherboard.

14. Is a cheap Windows 11 Pro key legitimate?

It depends what is being sold. A genuine licence released by a business and resold is legitimate and does cost much less than a first-hand one. A key priced at a couple of dollars is usually a volume or educational key that will stop activating. The test is whether the seller states the licence type, provides an official Microsoft download link and issues an invoice.

15. Do generic Windows 11 Pro keys work?

Not for activation. Generic keys are published by Microsoft so technicians can finish an installation or switch a system between editions without activating it. They leave Windows installed and unactivated, which means no normal patch cadence and a permanent watermark. Any page offering a free Windows 11 Pro activation key is offering something that does not exist.

16. Why are Windows 11 Pro keys so much cheaper here than at Microsoft?

Because the license is second-hand, not second-rate. Microsoft lists Windows 11 Pro at $199.99. What you buy here is a genuine perpetual license released by a business that no longer needs it, and the saving is the difference between a first-hand license and a released one. The license itself is identical: same Microsoft activation, same updates, same rights, including BitLocker, Hyper-V and Remote Desktop.

The price is still a signal worth reading. A Windows 11 Pro key in the $15 to $35 range, from a seller who states the license type and issues an invoice, is a normal resale. A key priced at one or two dollars is something else: a volume key issued to an organization, an educational key, or an OEM key already bound to somebody else's motherboard. All three activate at first and can be deactivated later.

Three checks anyone can make, on us or on any seller: is the license type stated in writing, does the download link point to Microsoft, and is there a company behind it with an address and an invoice?

17. Do the free Windows 11 Pro product keys posted online work?

No, and they are not stolen keys either. They are generic keys that Microsoft publishes so technicians can complete an installation or switch a system between editions. You will see them reposted on forums, code-sharing sites and PDF lists as free activation keys. They install Windows and leave it unactivated: no personalization, a permanent watermark on the desktop, and no normal update schedule. There is no free activation key for Windows 11 Pro, or for any other edition.

18. Is a Windows 11 Pro key the same as a CD key, an activation key or a digital license?

The first three are the same thing: a Windows 11 Pro CD key, product key and activation key are three names for the same 25-character code. CD key is the oldest of them, from the years when Windows shipped on a disc and the code was printed on the sleeve inside the box.

A digital license is slightly different. It is what Windows creates after you activate, linking that activation to your Microsoft account and to the hardware. You use the key once; from then on the PC reactivates from the digital license, which is why a reinstall does not normally ask for the code again. Keep the key anyway: you need it to move the license to a different computer.

19. Is a Windows 11 Pro license lifetime? 

Yes. This is a perpetual Retail license: one payment, no renewal, no expiry date. It is not a subscription and it is not tied to Microsoft 365. The license stays valid for that version of Windows for as long as you use it, and it keeps receiving the security updates Microsoft issues for Windows 11.

16. Why are Windows 11 Pro keys so much cheaper here than at Microsoft?

Because the license is second-hand, not second-rate. Microsoft lists Windows 11 Pro at $199.99. What you buy here is a genuine perpetual license released by a business that no longer needs it, and the saving is the difference between a first-hand license and a released one. The license itself is identical: same Microsoft activation, same updates, same rights, including BitLocker, Hyper-V and Remote Desktop.

The price is still a signal worth reading. A Windows 11 Pro key in the $15 to $35 range, from a seller who states the license type and issues an invoice, is a normal resale. A key priced at one or two dollars is something else: a volume key issued to an organization, an educational key, or an OEM key already bound to somebody else's motherboard. All three activate at first and can be deactivated later.

Three checks anyone can make, on us or on any seller: is the license type stated in writing, does the download link point to Microsoft, and is there a company behind it with an address and an invoice?

17. Do the free Windows 11 Pro product keys posted online work?

No, and they are not stolen keys either. They are generic keys that Microsoft publishes so technicians can complete an installation or switch a system between editions. You will see them reposted on forums, code-sharing sites and PDF lists as free activation keys. They install Windows and leave it unactivated: no personalization, a permanent watermark on the desktop, and no normal update schedule. There is no free activation key for Windows 11 Pro, or for any other edition.

18. Is a Windows 11 Pro key the same as a CD key, an activation key or a digital license?

The first three are the same thing: a Windows 11 Pro CD key, product key and activation key are three names for the same 25-character code. CD key is the oldest of them, from the years when Windows shipped on a disc and the code was printed on the sleeve inside the box.

A digital license is slightly different. It is what Windows creates after you activate, linking that activation to your Microsoft account and to the hardware. You use the key once; from then on the PC reactivates from the digital license, which is why a reinstall does not normally ask for the code again. Keep the key anyway: you need it to move the license to a different computer.

19. Is a Windows 11 Pro license lifetime? 

Yes. This is a perpetual Retail license: one payment, no renewal, no expiry date. It is not a subscription and it is not tied to Microsoft 365. The license stays valid for that version of Windows for as long as you use it, and it keeps receiving the security updates Microsoft issues for Windows 11.