VDI Full Form & Meaning

VDI stands for Virtual Desktop Infrastructure. It is a technology that hosts desktop operating systems — typically Microsoft Windows — inside virtual machines (VMs) running on centralised servers in a data centre or cloud. Each user connects to their own virtual desktop remotely over a network, from any device: a laptop, thin client, tablet, or smartphone.

The key distinction from traditional computing is that no data or applications are stored on the end-user’s physical device — everything runs on the server. The user sees and interacts with a full Windows desktop experience delivered to their screen in real time.

In simple terms: VDI puts your Windows desktop on a server. You access it from any device, from anywhere, and your data never leaves the data centre.

How Does VDI Work?

A VDI environment consists of several layers working together:

• Hypervisor layer: Software (VMware vSphere, Microsoft Hyper-V) that creates and manages multiple virtual machines on a physical server
• Connection broker: Authenticates users and routes each login to the correct virtual desktop (Citrix Delivery Controller, VMware Connection Server, Microsoft RD Connection Broker)
• Virtual desktop pool: A set of pre-created Windows VMs ready for users to connect to — either dedicated (one VM per user) or pooled/shared (VMs reset after each session)
• Display protocol: Compresses and streams the desktop image to the user’s device — Citrix HDX, VMware BLAST Extreme, or Microsoft RDP
• Storage layer: Stores the OS images, user profiles, and application data — optimised for high IOPS (vSAN, NVMe SSD, or Azure Managed Disks)

When a user connects, the broker authenticates them, assigns a VM, and the display protocol streams the desktop to their device. The user’s keystrokes and mouse movements travel back to the server. The round trip happens fast enough that — on a good connection — the experience feels like a local desktop.

VDI vs Remote Desktop (RDP) — Key Differences

This is one of the most common questions: what is the difference between VDI and Remote Desktop (RDP)?

Feature	VDI	Remote Desktop (RDS/RDP)
Desktop type	Each user gets their own dedicated VM	Multiple users share one Windows Server OS
Isolation	Full — each user’s environment is separate	Partial — users share the same OS kernel
OS	Windows 10/11 desktop OS per user	Windows Server with Desktop Experience
Performance	Consistent — dedicated resources per user	Can degrade if other users consume resources
Persistence	Persistent (dedicated) or non-persistent (pooled)	Session-based — settings reset on logoff
Cost	Higher — more infrastructure per user	Lower — shared server resources
Best for	Power users, compliance-heavy environments	Task workers, cost-sensitive deployments

Types of VDI

1. Persistent VDI

Each user gets a dedicated virtual desktop that retains their personalisation, installed applications, and settings between sessions — just like a personal PC, but virtualised. Persistent VDI is ideal for knowledge workers, developers, and power users who need a consistent, customised environment. It requires more storage and management overhead.

2. Non-Persistent VDI

Users connect to a “clean” virtual desktop from a shared pool. When the session ends, the VM resets to its original state. Non-persistent VDI is cost-efficient for task workers (call centre agents, data entry staff) who need standard access to the same set of applications and don’t require personalised settings.

3. Cloud VDI / DaaS (Desktop as a Service)

VDI infrastructure hosted in a public cloud — primarily Microsoft Azure (Azure Virtual Desktop), Citrix DaaS on Azure/AWS, or VMware Horizon Cloud. The organisation pays on a subscription basis without managing physical servers. DaaS is ideal for organisations wanting to eliminate VDI infrastructure management overhead.

Citrix VDI

Citrix Virtual Apps and Desktops (CVAD) is the most widely deployed VDI platform in large enterprises globally. Citrix’s proprietary HDX display protocol delivers Windows desktops over variable-quality internet connections with high-fidelity graphics, audio, and video. Citrix offers both on-premises (CVAD) and cloud-hosted (Citrix DaaS) deployment models.

Citrix VDI is particularly popular in Indian BFSI, healthcare, and pharma sectors due to its deep security controls: session recording, SmartAccess endpoint analysis, multi-factor authentication, and granular access policies. Virajo AutoSoft is a certified Citrix implementation partner in India — learn more about our Citrix VDI services.

VMware VDI (VMware Horizon)

VMware Horizon is VMware’s enterprise VDI and digital workspace platform. It runs on VMware vSphere infrastructure and uses the BLAST Extreme display protocol for desktop delivery. VMware Horizon is the natural choice for organisations that already use VMware vSphere for server virtualisation, as it integrates deeply with existing VMware infrastructure and management tools.

VMware Horizon also excels in GPU-accelerated VDI for engineering, design, and media workloads using NVIDIA vGPU technology. Virajo AutoSoft implements and manages VMware Horizon environments — learn more about our VMware Horizon services.

Azure Virtual Desktop (AVD) — Microsoft’s Cloud VDI

Azure Virtual Desktop (AVD), formerly Windows Virtual Desktop, is Microsoft’s cloud-native VDI platform hosted on Microsoft Azure. AVD uniquely offers multi-session Windows 11 Enterprise — multiple users sharing one VM — which significantly reduces Azure compute costs. It integrates natively with Microsoft 365, Azure Active Directory, and Microsoft Intune.

AVD runs on Azure’s India regions (Central India — Pune, South India — Chennai), making it compliant with Indian data residency requirements. It is the most cost-effective VDI option for organisations with Microsoft 365 E3/E5 licences. Learn more about our Azure Virtual Desktop services.

Accops VDI — Made in India

Accops HyWorks is an Indian VDI platform developed by Accops Systems Pvt. Ltd. (Pune). It provides virtual desktop and application delivery with zero-trust access capabilities through Accops HySecure. Accops is NIC (National Informatics Centre) approved and CERT-In empanelled, making it the preferred VDI choice for Indian government organisations and compliance-sensitive BFSI deployments. Learn more about our Accops VDI services.

Why Indian Enterprises Are Adopting VDI

• Hybrid and remote work: VDI enables employees to work securely from home, branch offices, or on travel without carrying sensitive data on their devices
• Data security and compliance: With data residing in the data centre — not on endpoints — VDI dramatically reduces data breach risk from lost/stolen devices. This supports CERT-In, RBI IT Framework, and DPDP Act compliance requirements
• BYOD (Bring Your Own Device): VDI allows employees to use personal devices for work without IT needing to manage or secure those devices — only the screen image is transmitted
• Centralised IT management: IT teams manage one set of desktop images in the data centre rather than hundreds of individual PCs across offices and homes
• Extended hardware life: Thin clients and older PCs can be used as VDI endpoints, reducing hardware refresh cycles and capital expenditure
• Business continuity: During disruptions (natural disasters, pandemics, power outages), users can continue working from any location with internet access

VDI Requirements — What You Need to Deploy VDI

• Server infrastructure: Physical servers with sufficient CPU, RAM, and fast storage (SSD/NVMe) to host virtual desktops — or a public cloud subscription (Azure, AWS)
• Hypervisor: VMware vSphere, Microsoft Hyper-V, or Nutanix AHV to create and manage VMs
• VDI platform: Citrix CVAD/DaaS, VMware Horizon, Azure Virtual Desktop, or Accops HyWorks
• Network: Minimum 2–5 Mbps per user for standard office workloads; low-latency connectivity between users and the data centre
• Storage: High-IOPS storage system (vSAN, Pure Storage, NetApp) — the most critical performance factor in VDI
• Endpoint devices: Any device with a browser or VDI client — thin clients, PCs, laptops, tablets, or smartphones
• Licences: Windows VDA or Microsoft 365 licence for users, plus VDI platform licensing (Citrix, VMware Horizon, or AVD)

VDI Frequently Asked Questions

What does VDI stand for?

VDI stands for Virtual Desktop Infrastructure. It is a technology that delivers Windows desktop environments to users from virtualised machines hosted on centralised servers in a data centre or cloud, rather than running the desktop locally on the user’s physical device.

What is the difference between VDI and a virtual machine (VM)?

A virtual machine (VM) is the underlying technology — a software-based computer running on a physical server. VDI is the management layer built on top of VMs specifically for delivering desktop environments to end users, including user authentication, desktop provisioning, session management, and display protocol delivery.

Is VDI the same as cloud computing?

Not exactly. VDI can be deployed on-premises (in your own data centre) or in the cloud (Azure, AWS). Cloud VDI — also called Desktop as a Service (DaaS) — uses public cloud infrastructure to host virtual desktops. Azure Virtual Desktop and Citrix DaaS are examples of cloud-based VDI.

Which VDI platform is best for Indian enterprises?

The right VDI platform depends on your organisation’s size, compliance requirements, and existing infrastructure. Citrix CVAD/DaaS is preferred by large regulated enterprises (BFSI, healthcare, pharma). Azure Virtual Desktop is ideal for Microsoft 365 users wanting cloud-first VDI. VMware Horizon suits organisations with existing vSphere infrastructure. Accops HyWorks is the recommended choice for Indian government organisations and BFSI deployments requiring CERT-In compliance and INR-based pricing. Virajo AutoSoft helps you evaluate and implement the right platform.

How much does VDI cost in India?

VDI costs in India vary significantly by platform and deployment model. On-premises Citrix or VMware Horizon requires upfront infrastructure investment plus annual licensing. Azure Virtual Desktop (cloud-based) has no upfront cost — you pay monthly Azure compute charges. Accops HyWorks offers INR-based perpetual or subscription licensing suited to Indian budget cycles. Virajo AutoSoft provides transparent, itemised pricing for all VDI platforms — contact us for a customised TCO analysis.

What internet speed is needed for VDI?

Minimum internet speed recommended for VDI is 2–5 Mbps per concurrent user for standard office applications (email, Office 365, web browsing). Multimedia-heavy workloads (video conferencing, graphics design) require 10–25 Mbps per user. Citrix HDX and VMware BLAST Extreme are optimised to deliver good performance even on connections as low as 1.5 Mbps for basic workloads.

Can VDI work on mobile phones and tablets?

Yes. All major VDI platforms — Citrix Workspace, VMware Horizon Client, Microsoft Remote Desktop, and Accops HyWorks — have Android and iOS apps. Users can access their full Windows desktop from a smartphone or tablet, though a physical keyboard and larger screen significantly improve the experience for productivity workloads.