Fix it now
Windows 11 Pro is the same operating system as Home with a specific set of capabilities unlocked: BitLocker you can manage, Hyper-V and Windows Sandbox, Remote Desktop hosting, domain and Entra ID join, and Group Policy. Nothing runs faster. If one of those describes something you need, it is worth the money; if none does, it is not.
- Buy Pro if you need to enable and manage BitLocker yourself, host incoming Remote Desktop sessions, run Hyper-V or Windows Sandbox, join a domain or a work account, or use Group Policy.
- Buy Pro if the machine belongs to a business and someone has to manage it centrally through mobile device management or Windows Update for Business.
- Skip Pro if you browse, game and use Office. Microsoft publishes no performance difference and there is none to find.
- Skip Pro if you only wanted WSL. Microsoft’s prerequisites name a Windows version and build, not an edition.
- Upgrade in place rather than reinstalling: Settings, System, Activation, then Change next to Change product key, or Open Store under Upgrade your edition of Windows.
- Export your BitLocker recovery keys and back up before any edition change, because it rewrites the product key and activation state.
Microsoft documents the upgrade from Home to Pro and does not document a route back. Treat the change as one-way and decide accordingly.
If the feature list settles it you can stop here. If you want the encryption and virtualisation details, read on.
Why it happens
Home and Pro share a kernel, a scheduler, a graphics stack and a security baseline. Benchmarks do not separate them and no game gains a frame. The edition difference is a set of management, virtualisation and encryption capabilities that Microsoft reserves for the business-facing SKU, and the whole purchase decision is whether one of them describes you.
Encryption is the strongest single reason and it is more nuanced than most descriptions allow. Microsoft’s position is that device encryption is available on all Windows editions and turns BitLocker on automatically on qualifying devices – and that from Windows 11 version 24H2 the Modern Standby and HSTI prerequisites for that were removed, so it happens on more hardware than it used to. What Home does not get is the ability to enable and manage BitLocker yourself. Microsoft’s supported editions for enabling BitLocker are Pro, Enterprise, Pro Education and SE, and Education. On a laptop that leaves the building with company data on it, that difference is the entire argument.
Virtualisation is the second reason, and it is unambiguous. Microsoft states that the Hyper-V role cannot be installed on Windows 10 or 11 Home and requires Pro or Enterprise, along with a 64-bit processor with second-level address translation, VM Monitor Mode Extension and at least 4 GB of memory. Windows Sandbox has the same edition story: supported on Pro, Enterprise, Pro Education and SE, and Education, and not supported on Home.
Remote access is the third. Windows Home editions cannot serve as Remote Desktop hosts, though they can be used as clients to connect to other systems. So a Home machine can reach out to your work desktop; it cannot accept an incoming session, and a Home machine you want to reach from elsewhere needs third-party remote software instead.
For managed environments the deciding features come from Microsoft’s own edition comparison: support for Active Directory with domain join and Group Policy, support for Microsoft Entra ID with join and hybrid join, mobile device management and mobile application management, Windows Update for Business, WSUS, cloud managed updates, Windows Autopilot, remote help, organisational messages, and Assigned Access for kiosk configuration. A business laptop that cannot join your directory and cannot be policy-managed is a laptop you will configure by hand, one machine at a time, for as long as you own it.
On hardware ceilings, be careful what you repeat. Microsoft publishes physical memory limits by edition – on x64, Windows 11 Home is capped at 128 GB and Pro at 2 TB, with Pro for Workstations and Enterprise at 6 TB and Education at 2 TB. What Microsoft does not publish on the Windows 11 specifications, business comparison or memory limits pages is a CPU socket limit distinguishing Home from Pro, so the widely repeated claim that Pro supports a second physical processor is not something this review will assert.
Just as useful is the list of things that do not need Pro. Microsoft Defender, Windows Hello, core isolation and SmartScreen are all in Home. WSL is a version and build requirement rather than an edition one: Microsoft’s install prerequisites name Windows 10 version 2004 and higher, build 19041 and higher, or Windows 11, with no edition named. And if somebody told you Pro would speed up your PC, they were repeating a myth that has outlived several versions of Windows.
Full reference
Home against Pro, from Microsoft’s own comparison
| Capability | Home | Pro |
|---|---|---|
| Enable and manage BitLocker yourself | No | Yes |
| Automatic device encryption on qualifying hardware | Yes | Yes |
| Hyper-V role | No | Yes |
| Windows Sandbox | No | Yes |
| Remote Desktop host (incoming sessions) | No | Yes |
| Remote Desktop client (outgoing connections) | Yes | Yes |
| Active Directory domain join and Group Policy | No | Yes |
| Microsoft Entra ID join and hybrid join | No | Yes |
| Mobile device and application management | No | Yes |
| Windows Update for Business, WSUS, cloud managed updates | No | Yes |
| Windows Autopilot, remote help, organisational messages | No | Yes |
| Assigned Access and kiosk mode setup | No | Yes |
| Physical memory limit on x64 | 128 GB | 2 TB |
| Defender, Windows Hello, SmartScreen, WSL | Yes | Yes |
| Gaming and general performance | Identical | Identical |
Encryption, done properly
- Find out first whether the machine already has device encryption on. Microsoft turns BitLocker on automatically on qualifying devices across all editions, and from Windows 11 24H2 the old Modern Standby and HSTI prerequisites no longer apply.
- Decide where the recovery key lives before you change anything: a Microsoft account, Active Directory, or a printed copy in a safe. A drive you cannot unlock is indistinguishable from a drive you have lost.
- Export existing recovery keys and take a backup before any edition change.
- Suspend BitLocker during the edition change, then resume it afterwards.
- If you need BitLocker To Go for removable drives, or control over encryption methods and recovery key management, that is Pro or above.
An edition change rewrites the product key and the activation state. Back up your data and export any BitLocker recovery keys before you start. Microsoft documents the upgrade from Home to Pro and does not document a route back, so treat it as a one-way change rather than something to try out.
The upgrade path Microsoft documents
- Select Start, then Settings, then System, then Activation.
- Next to Change product key, select Change, and enter your 25-character Windows 11 Pro product key.
- Select Next to start the upgrade. Files and installed applications stay where they are.
- Alternatively, expand Upgrade your edition of Windows and select Open Store to buy the upgrade through the Microsoft Store.
- Restart when prompted. There is no reinstallation involved in changing edition upwards.
Pro for Workstations, in one line each
- Persistent memory support, for the storage class that behaves like memory.
- SMB Direct, for RDMA-capable network adapters and the throughput they allow.
- The Resilient File System, ReFS.
- A 6 TB physical memory limit on x64 against Pro’s 2 TB.
- If none of those four lines describes work you actually do, Pro is the correct stop and Workstations is money spent on a specification sheet.
Licensing, and the question to answer before a failure
Find out which licence type the machine holds before a motherboard dies rather than afterwards, because that is when it matters and when it is hardest to research calmly. If the licence is linked to a Microsoft account, reactivation after a hardware change is usually a matter of running the activation troubleshooter and selecting the device you changed. This review does not restate OEM and retail transfer rules as fact, because they are not something it verified this pass – what it can tell you is that the distinction exists, that it changes what happens after a hardware failure, and that the time to find out is now.
When a licence is the actual fix
If you need BitLocker you can manage, Hyper-V, Windows Sandbox, Remote Desktop hosting or domain join, a Windows 11 Pro licence is the only supported way to get them and no configuration change substitutes for one. Arco supplies Windows 11 Pro, including for in-place upgrades from Home, and can confirm whether an upgrade key or a full licence is right for the machine in front of you and whether the licence it already holds is OEM or retail before you commit. If the honest answer is that you only wanted WSL, a local account or better performance, we will tell you that Home already does the first two and that the third is not something Pro provides.
Questions people ask about this
Will Pro make my PC faster?
No. The kernel, scheduler and drivers are the same, games perform identically, and no benchmark separates them. Pro adds capabilities, not speed. Anyone selling you Pro on performance grounds is either mistaken or hoping you are.
Can I upgrade from Home without reinstalling?
Yes. Microsoft documents the route: Start, Settings, System, Activation, then Change next to Change product key and enter a Windows 11 Pro key; or expand Upgrade your edition of Windows and select Open Store. Files and installed applications survive. Back up first anyway, because it is an activation change on a live system.
Can I go back to Home afterwards?
Microsoft’s upgrade page documents the route from Home to Pro and no route back. Treat the change as one-way. If you are unsure whether you need Pro, work through the feature list before buying rather than planning to reverse it.
Does Home encrypt the drive at all?
Yes, on qualifying hardware. Microsoft states that device encryption is available on all Windows editions and turns BitLocker on automatically on qualifying devices, and that the Modern Standby and HSTI prerequisites were removed from Windows 11 version 24H2. What Home does not give you is the ability to enable and manage BitLocker yourself, or BitLocker To Go for removable drives.
Do I need Pro for WSL?
No. Microsoft’s install prerequisites for WSL name Windows 10 version 2004 and higher, build 19041 and higher, or Windows 11 – a version and build requirement, not an edition one. If WSL is the only thing you wanted, Home is enough.
