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On a PC’s technical specifications sheet, the line “Windows 11 Home” or “Windows 11 Professional” does not say much. Both editions start on the same desktop, receive the same updates, and run the same software. The difference comes down to around ten specific features, all publicly documented by Microsoft. Here they are, what they actually do, and when they make a difference for you.

What both editions have in common

Let’s start with the most important point, because it’s what people forget to mention: Home and Professional are the same system. Same kernel, same interface, same Start menu, same File Explorer, same browser, same Microsoft Store.

Specifically, the following are identical in both Windows 11 editions:

• Basic security: Microsoft Defender antivirus, the firewall, the SmartScreen filter, ransomware protection, and core isolation.
• Windows Hello (unlocking by fingerprint, face, or PIN).
• Application compatibility. Software that runs on Home runs on Professional, and the reverse is also true.
• The required hardware configuration: a compatible 64-bit processor, 4 GB of memory, 64 GB of storage, UEFI with Secure Boot, and a TPM 2.0 chip. The edition has no effect on a machine’s eligibility.
• The update schedule. Both editions receive the same annual version, with the same support duration: Microsoft puts Home, Professional, Professional for Workstations, and Professional Education on the same schedule.

In other words, no one gets a “faster” or “more stable” Windows by paying for Professional. What you get are additional administration and security features. Let’s review them.

BitLocker and encryption: the most misunderstood difference

This is the point that causes the most confusion because Microsoft uses two names for two different things.

Device encryption is available on all editions, including Home. It automatically encrypts the system drive and internal drives, without requiring you to activate anything, on machines that meet the prerequisites. Since Windows 11 version 24H2, Microsoft has also removed some of these hardware prerequisites, making many more PCs eligible. The recovery key is then saved to your Microsoft account. An important point documented by Microsoft: if the machine uses only local accounts, the drive is encrypted, but it is not actually protected because the key has not been backed up.

BitLocker as a configurable feature, however, is reserved for the Professional, Enterprise, and Education editions. That is the difference that matters day to day:

• On Home, encryption is automatic or unavailable. You can enable or disable it in Settings, and that is about it.
• On Pro, you get access to the full BitLocker panel: choose which volumes to encrypt, require a PIN at startup in addition to the TPM, print or store the recovery key wherever you want, suspend encryption before a firmware update, and encrypt a USB drive with BitLocker To Go.

If you carry a laptop containing customer data or confidential documents, this capability is not a gimmick. If you have a desktop PC at home that never leaves the house, the automatic encryption in the Home edition is more than sufficient.

Remote Desktop in host mode

Windows Remote Desktop works in both directions, and that is exactly where the limitation lies.

Microsoft states it plainly: the Professional, Enterprise, Education, and Windows Server editions can serve as hosts for incoming Remote Desktop connections. The Home editions cannot. On the other hand, a machine running Windows 11 Home can connect perfectly well to another machine: it makes an excellent client.

In plain language: from your laptop while traveling, you want to take control of your desktop PC that you left switched on? It is the desktop PC—the one receiving the connection—that must be running Pro. The laptop making the connection can remain on Home.

An honest nuance: this need can also be handled with third-party remote-access tools that work on Home. The advantage of Windows Remote Desktop is that it is native: nothing to install, and no account or external service involved. But this is not an insurmountable barrier.

Joining a domain and centralized management

This category does not concern individuals, but it is a deal-breaker for businesses. Windows 11 Home cannot join an Active Directory domain or be joined to Microsoft Entra ID. A Home machine can add a work account to access services, but it cannot be connected to the company directory.

A nuance that is often reported incorrectly: it is the join that is locked down, not remote management itself. Microsoft explicitly lists the Home edition among the systems supported by Intune. A Home device can therefore be enrolled and managed, but without identity joining, without the resulting automatic enrollment, and with some settings out of reach because not all configuration providers are available on every edition. For a fleet backed by a directory, the Home edition remains excluded.

Several features that are genuinely absent from the Home edition are related to this point:

• The Local Group Policy Editor (gpedit.msc), which lets you configure hundreds of Windows behaviors without touching the registry.
• Joining a domain or Entra ID, along with automatically enrolling the device in the company's management tool.
• Deferring updates persistently through a policy defined on the device. The Home edition can pause updates for a few weeks, but without a local Group Policy Editor, it offers no built-in way to set a long-term deferral policy.
• Assigned access (kiosk mode), for locking a device to a single application: reception kiosk, cash register, or display screen. Microsoft lists only Professional, Enterprise, Education, and IoT Enterprise.

One detail that matters if you administer things yourself: Windows 11 does not create the domain. You need a domain controller, meaning a server system. That is the role of a Windows Server license, a product distinct from the desktop editions.

Hyper-V and Windows Sandbox

Two virtualization features, both absent from the Home edition.

Hyper-V is Microsoft's hypervisor. It lets you create persistent virtual machines: a test Windows 10 installation, Linux, or an isolated environment for an old business application. The Hyper-V role cannot be installed on Windows 11 Home. It also requires a 64-bit processor with second-level address translation (SLAT), virtual machine monitor mode extensions, virtualization enabled in the UEFI, and at least 4 GB of memory.

Windows Sandbox is simpler and, for many people, more useful day to day. It is a disposable Windows desktop that starts in a few seconds, where you can open a suspicious attachment or test an unknown installer. When you close it, everything disappears. Microsoft explicitly states that the feature is not supported on the Home edition.

The nuance to know before pulling out your credit card for this reason alone: the Windows Subsystem for Linux (WSL 2) and the main third-party virtualization solutions work on the Home edition. If your need is “run Linux” or “run containers,” you do not necessarily need Pro. If your need is “specifically Hyper-V” or “an integrated disposable sandbox,” then you do.

The memory limit

This is the only quantified difference between the two editions, and it comes directly from Microsoft's page on memory limits.

Let's be clear about what this figure really means: a consumer PC very rarely exceeds 32 or 64 GB of memory. For the vast majority of users, this limit is never reached. It only becomes a consideration if you are building a workstation for computing, 3D rendering, or heavy virtualization. In that case, also consider the Pro for Workstations edition, which the same Microsoft page lists at 6 TB.

Who actually needs the Pro edition

Let's go through them in order. You need Pro if you answer yes to at least one of these questions:

• Does your machine need to accept incoming Remote Desktop connections?
• Does it need to join a corporate domain or your organization's Entra ID directory?
• Do you want fine-grained control over disk encryption, or to encrypt USB drives with BitLocker To Go?
• Do you need Hyper-V or Windows Sandbox?
• Do you need to apply group policies, lock a device in kiosk mode, or manage the update schedule from the machine?
• Do you exceed 128 GB of RAM?

If that is the case, the Windows 11 Pro license advertised for 3 devices is the right choice: €29.99 including VAT for three machines, or less than €10 per device, with the key emailed within a few minutes and an invoice including VAT.

If you answered no to everything, do not pay for features you will never use. Office, web, photo, gaming, or multimedia use has absolutely nothing to gain from upgrading to Pro. You already have Windows 11 Home on your computer and it does the job: your budget is better spent on the office suite, with an Office 2024 Pro Plus for 3 PCs license that you will use every day.

The most common intermediate case is the self-employed worker or very small business. You do not have a domain or an IT department, but you handle customer data and would like to take control of your workstation remotely. In that case, Pro makes sense, and a Windows 11 Pro with Office 2021 bundle covers both needs at once.

Switching from Home to Pro

The good news is that the upgrade takes place in place, without reinstalling Windows or reformatting the drive. Microsoft describes two paths, including the product-key method.

Here are the steps:

• First, check that your Windows 11 Home is activated. Microsoft specifies that the procedure requires an already activated copy and recommends resolving activation issues before upgrading.
• Open Settings > System > Activation.
• Expand the upgrade section, then choose Change product key.
• Enter the 25-character Pro product key.
• Let Windows apply the edition change. The computer will restart during the process.

A few common-sense precautions. Make a backup beforehand, as with any operation affecting the system: an edition upgrade is designed to keep your files and applications, but making a backup costs nothing. Make sure you are connected to the Internet for activation. Also note that the reverse process is not symmetrical: going from Pro back to Home generally requires a clean installation; it is not simply a matter of changing the product key.

If the operation does not complete successfully, the activation troubleshooter, accessible from this same Settings page, will generally display an explicit error message. If you are unsure about your specific situation, Microsoft’s published activation documentation is the authoritative reference.

Finally, if you are equipping several workstations at once, with the operating system and office software together, the Windows and Office bundles combine both in a single item, so you do not have to track two separate orders.