Every Way to Run Windows as a Virtual Machine: Channels, Pros, Cons and Cost

Microsoft does not license Windows by where the virtual machine runs. It licenses two things: who may install and run the Windows image (virtualization rights), and who may connect to it (access rights). Every option below is a different answer to those two questions.

The Windows client editions split cleanly. A Windows 11 Pro license bought with a PC or at retail covers one instance on one device, physical or virtual, and Microsoft's software license terms add that a second virtual instance needs its own license. The per-user subscriptions, Windows 10/11 Enterprise E3 and E5 and the Windows VDA E3 and E5 variants, are what carry the rights to run Windows in Azure, in Windows 365, in Azure Virtual Desktop and on your own servers. Microsoft's December 2025 licensing guidance for virtual desktops lays the rights out by scenario, and that document is the one to keep open while you read the rest.

Windows Server is a different product with a different model: cores for the server, a Windows Server CAL for each user or device, and a Remote Desktop Services CAL on top when people use it as a desktop. It is also the one edition a service provider may license for you under SPLA, which matters for the hoster option below.

The simplest case: Hyper-V on a Windows 11 Pro PC, VMware Workstation, VirtualBox, or Parallels Desktop on a Mac, with Windows inside.

• License and channel. A Windows 11 Pro license per virtual machine, bought as a one-time software license, or a Windows 10/11 Enterprise E3 subscription for the user, which allows local virtual instances on the licensed user's devices. Parallels documents its platform as an authorized way to run Arm Windows 11 Pro and Enterprise on Apple silicon, and says a separate Windows license is needed for each instance, from the Microsoft Store or retail.
• Pros. No cloud bill, works offline, the hardware is already paid for, and a developer gets a disposable Windows in minutes.
• Cons. The VM lives and dies with the device; there is no central management unless the VM is enrolled in Intune like a physical PC; one license per VM; on Apple silicon only the Arm build of Windows runs, which some line-of-business apps and drivers do not support.
• Cost. One-time: the current Windows 11 Pro price is on its software page. Subscription: Windows 10/11 Enterprise E3 at $7.60 per user per month on an annual term (Microsoft list price, October 2026 price list; the list carries $91.20 per year).

Hyper-V on Windows Server, VMware or another hypervisor on hardware you own, with a Windows 11 virtual machine per user, usually behind a broker such as Citrix or Omnissa.

• License and channel. Every user who connects needs Windows 10/11 Enterprise E3 or E5 per user; a user whose only device is a thin client or a non-Windows device needs the Windows VDA E3 or E5 variant instead, because the standard E3 assumes the user has a qualifying Windows Pro device. Both come through CSP, Open Value, an Enterprise Agreement or MPSA. The hosts need Windows Server licensed by core, and the broker and the hardware are separate purchases.
• Pros. Data never leaves the building; GPUs and unusual hardware are yours to choose; no metered bill; the environment keeps working when the internet does not.
• Cons. Capital cost up front, capacity planning, patching, backup and high availability are all on your team; the per-user Enterprise subscription is still due for every user; a thin-client fleet moves everyone to the dearer VDA price.
• Cost. Windows 10/11 Enterprise E3 at $7.60 per user per month, Windows 10/11 Enterprise E3 VDA at $14.20, Windows 10/11 Enterprise E5 at $12.80 (annual term, October 2026 price list), plus Windows Server for the hosts, the broker, the hardware and the people.

One or more Windows Server session hosts with the Desktop Experience, where many users share each server through Remote Desktop. This is the classic "terminal server", on your hardware or in a colocated or hosted server.

• License and channel. No Windows client license at all: the desktop is Windows Server. Each user or device needs a Windows Server CAL and a Remote Desktop Services CAL; the server needs Windows Server by core. Volume licensing (Open Value, Enterprise Agreement, MPSA) or CSP perpetual software; a service provider can supply the same under SPLA as a subscriber access license. Microsoft 365 Apps in a shared session needs shared computer activation, which Business Premium, E3 and E5 include.
• Pros. The most compact way to put many users on one machine; mature, well understood, and every remote-access tool supports it.
• Cons. It is Windows Server, not Windows 11: some applications refuse to install on a server, the look differs, and vendors sometimes license their own software differently on it. Users share the server's resources, so one heavy session slows the rest.
• Cost. Windows Server cores, Windows Server CALs and RDS CALs are perpetual or subscription software licenses rather than per-user-per-month plans; our Windows Server licensing calculator prices a configuration, and a quote carries the current software prices.

A provider runs the desktops on its own shared infrastructure and bills you monthly.

• License and channel. For Windows Server desktops the provider licenses everything under SPLA, including the RDS subscriber access license, and you buy nothing from Microsoft. For Windows 11 desktops it is the other way around: there is no SPLA for the Windows client operating system, so a shared host may run Windows 11 only when the provider is authorized for multitenant hosting and you bring your own Windows 10/11 Enterprise E3 or E5 per-user subscriptions; on hardware dedicated to you, Windows VDA per user covers access to the provider's servers. Microsoft's guidance names these providers and scenarios; ask the provider which one you are in before signing.
• Pros. No hardware, no hypervisor to run, one monthly invoice, and the provider's staff handle the platform.
• Cons. Your Windows licensing still has to be right, and it is your name on the audit; a Windows Server desktop carries the application limits of option 3; the provider's terms govern data location, backup and exit.
• Cost. The provider's per-desktop fee, plus your Windows Enterprise E3 or E5 per user when the desktop is Windows 11.

A plain Azure virtual machine that people reach over Remote Desktop: a single administrator jump box, a small Remote Desktop Services farm, or one desktop per user.

• License and channel. The Windows Server license is included in the hourly rate of a pay-as-you-go Windows Server VM, or you apply Azure Hybrid Benefit with Windows Server licenses you already own with Software Assurance or a subscription; our guide to Azure Hybrid Benefit for Windows Server and SQL Server covers the mechanics. Session-based use adds RDS CALs for the users. A Windows 11 virtual machine in Azure is never included in the VM price: every user who connects needs Windows 10/11 Enterprise E3 or E5, Windows VDA per user, or a Microsoft 365 plan that carries the Windows Enterprise right.
• Pros. Minutes to build, pay only while it runs, and the same bill as the rest of your Azure estate.
• Cons. A desktop built this way has none of the desktop plumbing: no broker, no profile management, no autoscaling, and a Windows Server session feels like a server. The Azure charges are metered and billed to you whether anyone signs in or not unless you stop the machine.
• Cost. Azure compute, disks and networking at Azure's metered rates, which the Azure pricing calculator gives for your region and size, plus the Windows licenses above.

Microsoft's desktop and application virtualization service in Azure. Session hosts run Windows 11 Enterprise multi-session (several users per VM), Windows 11 Enterprise single-session, or Windows Server. Our articles What is Azure Virtual Desktop? and Azure Virtual Desktop for a small business go deeper.

• License and channel. For Windows 11 session hosts, the right to use Azure Virtual Desktop is included in Microsoft 365 E3, E5, F3, A3, A5 and Business Premium, in Windows 10/11 Enterprise E3 and E5, and in Windows VDA per user; per-device licenses do not qualify. For Windows Server session hosts you need an RDS CAL with active Software Assurance or an RDS subscription license, and a Microsoft Q&A answer from May 2025 says a provider's SPLA-based RDS subscriber access license no longer licenses Windows Server session hosts in Azure Virtual Desktop after September 30, 2025. External users, such as a customer or a contractor who is not your employee, are covered by per-user access pricing billed through Azure. The licenses come through CSP or volume licensing; the Azure consumption is billed by Azure.
• Pros. Multi-session Windows 11 pools many users onto fewer virtual machines, autoscale turns hosts off outside working hours, GPU sizes exist, FSLogix handles profiles, and the management service itself carries no charge. For a company already on Business Premium or Microsoft 365 E3, the Windows license is already paid for.
• Cons. Somebody has to design and run it: images, host pools, scaling plans, profiles, network and monitoring. The bill is consumption and changes with use. Windows 11 Enterprise multi-session runs only in Azure and Azure Local.
• Cost. The Microsoft 365 or Windows license you probably already have, plus metered Azure compute, storage and networking billed to you. Our Windows 365 versus Azure Virtual Desktop tool puts a Cloud PC price next to an Azure Virtual Desktop estimate for your user count.

A Windows 11 desktop that Microsoft runs for you at a fixed price per user per month, in three editions.

• Windows 365 Business. No licensing prerequisites, up to 300 users per tenant, bought in CSP by itself. Microsoft lowered its list prices on May 1, 2026 and on the same date retired the Windows Hybrid Benefit discount for new purchases; existing subscriptions keep renewing.
• Windows 365 Enterprise. Each user needs Windows 11 Enterprise, Microsoft Intune and Microsoft Entra ID P1, which Microsoft 365 E3, E5, F3 and Business Premium include. In return the Cloud PC is managed in Intune like any other device.
• Windows 365 Flex. The former Windows 365 Frontline, renamed in 2026, with the same prerequisites as Enterprise. A Flex license is shared by several users who take turns, so it suits shifts and part-time staff; the price list still carries the Frontline-named sizes beside the Flex ones.
• Pros. The price is flat and includes the compute; there is nothing to design; a new user has a desktop the same day; the Windows license question is settled by the edition you buy.
• Cons. You pay the same whether the Cloud PC is used eight hours a day or never; sizes are fixed; each user has their own machine, so there is no pooling; Enterprise and Flex need the Microsoft 365 plan underneath.
• Cost. Per user per month on an annual term, Commercial segment (Microsoft list price, October 2026 price list; the list carries annual figures, divided by twelve): Windows 365 Business 2 vCPU, 4 GB, 128 GB at $25.20 and 2 vCPU, 8 GB, 128 GB at $32.40; Windows 365 Enterprise 2 vCPU, 4 GB, 128 GB at $27.90 and 2 vCPU, 8 GB, 128 GB at $36.90; Windows 365 Flex 2 vCPU, 8 GB, 128 GB at $55.80 per shared license. A monthly term costs more per month than the annual term on every size.

A developer workstation in the cloud, billed through Azure by compute and storage used, with the same prerequisites as Windows 365 Enterprise (Windows 11 Enterprise, Intune and Entra ID P1, all in Microsoft 365 E3, E5 and Business Premium). Microsoft's product page says new sign-ups ended on November 1, 2025 as Dev Box capabilities move into Windows 365, so a new project starts with Windows 365 instead.

Annual term, Commercial segment, Microsoft list price, October 2026 price list. The list carries annual figures; the monthly figure is the annual price divided by twelve.

Two worked examples make the shapes visible. Twenty-five office users on Windows 365 Business 2 vCPU, 8 GB, 128 GB cost $810.00 per month in Cloud PCs ($32.40 × 25), with their Microsoft 365 plan on top and nothing else to run. The same twenty-five users on Azure Virtual Desktop with Business Premium already in place add no license at all, and instead pay Azure's metered charges for the session hosts, disks and network, which fall when autoscale turns hosts off at night and rise when they do not. On your own servers the same group pays $190.00 per month for Windows Enterprise E3 ($7.60 × 25) plus Windows Server, the broker and the hardware you depreciate.

• One or two people who need a second Windows for a tool: a local VM with its own Windows 11 Pro license, or on Apple silicon, Parallels with Arm Windows.
• A small company already on Business Premium that wants desktops it never has to patch: Windows 365 Business or Enterprise.
• Shift workers, seasonal staff and contractors who never all sign in at once: Windows 365 Flex, or a pooled Azure Virtual Desktop host pool.
• Fifty or more users, variable hours, GPU needs, or a wish to pay for what is used: Azure Virtual Desktop with multi-session Windows 11, run by a team that owns it.
• One line-of-business application that must stay on a single server with many light users: Remote Desktop Services on Windows Server, on premises or in Azure.
• Data that must not leave the building, or hardware already bought: on-premises VDI with Windows Enterprise E3 per user.
• A provider you trust to run the platform: a hoster, with the Windows client licensing question answered in writing before the contract.

Can I run Windows 11 Pro in a virtual machine on a hosting provider's shared server?

Not under a Pro license. There is no SPLA for the Windows client operating system, and a Pro license covers one instance on one device. A shared host may run Windows 11 only when the provider is authorized for multitenant hosting and the users bring Windows 10/11 Enterprise E3 or E5 per-user subscriptions; otherwise the provider offers a Windows Server desktop under SPLA.

Does Microsoft 365 Business Premium include the Windows license for Azure Virtual Desktop and Windows 365?

Yes for both. Business Premium carries the Windows Enterprise right, Intune and Entra ID P1, which is the full prerequisite set for Azure Virtual Desktop on Windows 11 session hosts and for Windows 365 Enterprise. Windows 365 Business needs no prerequisite at all. Windows 365 itself is a separate license in every edition.

What is the difference between Windows Enterprise E3 and Windows VDA E3?

The rights are the same; the difference is the user's device. E3 per user assumes the user is the primary user of a device that already has a qualifying Windows Pro license. A user whose only device is a thin client, a Mac or a Chromebook needs the VDA variant, which costs $14.20 against $7.60 per user per month at October 2026 list prices.

Is Azure Virtual Desktop cheaper than Windows 365?

It depends on hours and pooling, not on the list. Windows 365 is a flat price per user that includes compute. Azure Virtual Desktop charges metered Azure consumption that falls when hosts are off and when several users share a multi-session host, and rises when they are not. Our Windows 365 versus Azure Virtual Desktop tool runs the comparison for your numbers.

Do I need RDS CALs for Azure Virtual Desktop?

Only when the session hosts run Windows Server. Windows 11 Enterprise multi-session and single-session hosts are covered by the per-user Microsoft 365 or Windows Enterprise licenses listed above. Windows Server hosts need an RDS CAL with active Software Assurance or an RDS subscription license.

What happened to Windows 365 Frontline and the Windows Hybrid Benefit?

Microsoft renamed Windows 365 Frontline to Windows 365 Flex in 2026, and the October 2026 price list carries both names. The Windows Hybrid Benefit, a discount on Windows 365 Business for users who also had Windows Pro devices, was retired for new purchases on May 1, 2026; existing subscriptions keep renewing.

• Microsoft Learn, "Licensing Azure Virtual Desktop", read October 14, 2026.
• Microsoft, "Windows 11 Licensing for Virtual Desktops", licensing guidance, December 2025 edition.
• Microsoft Learn, "Windows commercial licensing overview", read October 14, 2026.
• Microsoft, Software License Terms, Windows Operating System, "Use in a virtualized environment", read October 14, 2026.
• Microsoft Learn, "Compare Windows 365 Business and Enterprise" and "Windows 365 requirements", read October 14, 2026.
• Microsoft, Windows 365 licensing FAQ, read October 14, 2026.
• Licensing School, "Retirement of Windows Hybrid Benefit", May 1, 2026; Sherweb, "Microsoft updates for MSPs, June 2026".
• Microsoft Learn, "Desktop hosting reference architecture" (no SPLA for Windows client), read October 14, 2026.
• Microsoft Q&A, "Licensing Azure Virtual Desktop and Windows Server RDS", May 2025 (a moderator answer, not a product-terms document).
• Microsoft, "Microsoft Dev Box" product page, read October 14, 2026.
• Parallels knowledge base, "Activate Windows 11 after installation in Parallels Desktop", read October 14, 2026.
• Microsoft list prices: October 2026 price list, Commercial segment, United States.

Pick the option, then let us size it: our Azure Virtual Desktop implementation service designs and builds a host pool with the licensing settled, the Windows 365 versus Azure Virtual Desktop tool gives a first number in a minute, and a thirty-minute call sorts out which of the eight you are actually looking at.