Virtual Desktop

Last updated: August 6, 2026

What is a virtual desktop?

A virtual desktop, also known as a virtual desktop infrastructure (VDI), is a preconfigured operating system that runs on a central server and streams to a user's device over a network, so the desktop looks and behaves like a local computer while all processing and data stay on the server. The endpoint, whether a laptop, tablet, thin client, or phone, only displays the desktop image and sends back keyboard and mouse input.

Businesses run and manage virtual desktops with virtual desktop infrastructure (VDI) software, which provisions the desktops, brokers user connections, and keeps data secure in the data center.

How does a virtual desktop work?

A virtual desktop works by hosting a user's desktop on a central server and streaming it to whatever device they log in from, so the desktop runs in the data center while the device only displays it. From the user's side, the process runs in four steps:

1. Log in. The user opens a client app or browser on any device and signs in.
2. Connect. A connection broker matches the user to their assigned or pooled desktop on the server.
3. Stream. A display protocol sends the desktop screen to the device and carries the user's input back, so it feels local.
4. Process centrally. Applications, computing, and data all stay on the server, so even an older or low-powered device runs resource-heavy work smoothly.

What are the components of a virtual desktop?

A virtual desktop relies on several components working together: a hypervisor, virtual machines, a connection broker, a display protocol, golden images grouped into desktop pools, central storage, and the endpoint device the user connects from.

• Hypervisor: Divides one physical server into many isolated virtual machines, using the same server virtualization technology found across the data center.
• Virtual machines: The individual desktop environments the hypervisor creates, each running a full desktop operating system.
• Connection broker: Authenticates each user and routes them to their assigned or pooled desktop.
• Display protocol: Streams the screen and carries user input, using protocols such as PCoIP, Blast Extreme, HDX, or RDP.
• Golden image and desktop pools: A master image cloned into pools to provision consistent desktops for different user types at scale.
• Storage: Central storage that holds user profiles and files so they persist between sessions where required.
• Endpoint: The thin client, laptop, tablet, or browser the user connects from, which renders the display but stores no corporate data.

Virtual desktop vs. VDI vs. virtual machine

A virtual desktop, VDI, and a virtual machine are related but distinct: a virtual machine is the isolated software computer that emulates hardware, VDI is the infrastructure that turns many virtual machines into delivered desktops, and the virtual desktop is the desktop experience a user actually receives.

What are the types of virtual desktops?

The two types of virtual desktops are persistent and non-persistent, and the difference is whether the desktop remembers the user between sessions.

• Persistent desktop: Each user gets a dedicated desktop that saves their settings, files, and installed applications between sessions. It suits developers, IT staff, and other users who need a consistent, customizable environment.
• Non-persistent (pooled) desktop: Users connect to a generic desktop that resets to a clean state at logout. It is cheaper and easier to manage at scale, which fits call centers, computer labs, and shared task-work environments.

What are the virtual desktop delivery models?

Virtual desktops are delivered three main ways: virtual desktop infrastructure (VDI), remote desktop services (RDS), and desktop as a service (DaaS). The choice comes down to who owns the infrastructure and how much personalization each user needs.

• VDI: The organization hosts and manages the environment itself, on-premises or in a private cloud, giving each user a dedicated virtual machine and full control.
• RDS: Multiple users share a single server operating system in separate sessions. It costs less per user and works well for standardized applications, but offers less personalization.
• DaaS: A cloud provider hosts and manages the virtual desktops on a subscription or usage basis, removing the need to buy and run the underlying infrastructure.

Named platforms span all three models, including Citrix, Omnissa Horizon (formerly VMware Horizon, spun off in 2024), Microsoft Azure Virtual Desktop, Amazon WorkSpaces, Windows 365 Cloud PC, and Nutanix.

What are the pros and cons of virtual desktops?

Virtual desktops centralize computing to gain security and flexibility, but they trade that for network dependence and upfront cost. The main advantages and drawbacks are below.

Pros:

• Security: Data lives in the data center, not on the endpoint, so a lost or stolen device does not expose corporate information.
• Centralized management: IT patches, updates, and provisions desktops once, centrally, instead of touching every device.
• Device flexibility: Employees reach the same desktop from any device, which supports remote work, bring your own device (BYOD), and contractor access.
• Business continuity: Because desktops are hosted centrally, they are quick to restore and simplify backup and disaster recovery.

Cons:

• Network dependence: A weak connection degrades the experience, and latency-sensitive work such as video editing or CAD can suffer.
• Upfront cost: VDI requires investment in servers, fast storage to handle login "boot storms," and licensing before it pays off.
• Complexity: Designing, sizing, and maintaining an environment takes specialized skills, including GPU allocation for graphics workloads and user-profile management.
• Licensing: Microsoft's rules for running Windows desktops in virtual machines add licensing complexity that teams have to plan around.

Frequently asked questions about virtual desktops

Still have questions about virtual desktops? Find quick answers below.

Q1. What is the difference between a virtual desktop and a remote desktop?

A virtual desktop gives each user an independent, virtualized desktop provisioned from a central server, while a remote desktop connects a user to one specific physical machine or a shared session host over a protocol like RDP. In short, a virtual desktop is a dedicated environment created on demand, whereas remote desktop is remote control of a machine that already exists.

Q2. Is a virtual desktop the same as a virtual machine?

No. A virtual machine emulates an entire computer with its own operating system and is the building block, while a virtual desktop is a user-facing desktop that VDI delivers on top of one or more virtual machines. Every virtual desktop relies on a virtual machine, but not every virtual machine is a virtual desktop.

Q3. What are the main use cases for virtual desktops in enterprise IT?

Enterprises use virtual desktops most often for remote and hybrid work, secure access for contractors and third parties, and regulated environments in healthcare and finance where data cannot leave the data center. Other common uses include call centers, computer labs in education, and software development and testing.

Q4. VDI vs. DaaS: which should you choose?

Choose VDI when you want to own and control the infrastructure in-house and have the IT resources to run it, and choose DaaS when you would rather offload hosting and management to a cloud provider on a subscription. VDI favors control and customization, while DaaS favors speed of setup and lower upfront cost.

Q5. Are virtual desktops good for remote work and BYOD?

Yes. Because the desktop and its data stay on the server, employees can securely access the same environment from a personal laptop, tablet, or phone without corporate data being stored on the device, which is what makes virtual desktops a strong fit for remote work and BYOD policies.

Ready to roll out virtual desktops? Learn how to approach VDI security and protect data across your deployment.