--- title: "Cognition's Devin Gets a Windows PC to Tackle Enterprise Legacy Code" subtitle: "Cognition's AI engineer Devin can now build, run, and test native Windows apps in a cloud VM, unlocking .NET migrations and GUI testing for enterprises" url: "https://alphasignal.ai/news/cognition-s-devin-gets-a-windows-pc-to-tackle-enterprise-legacy-code" author: "AlphaSignal Newsroom" author_url: "https://alphasignal.ai/editorial-team" company: "Cognition" company_url: "https://alphasignal.ai/company/cognition" published: "2026-05-21T16:17:58.000Z" updated: "2026-06-16T21:12:21.746Z" type: "News" topics: - "Agents" - "Development" subtopics: - "Code Agents" - "Computer Use" - "Code Agents" upvotes: 489 read_time: "6 min" source_url: "https://devin.ai/windows" comments: 0 --- # Cognition's Devin Gets a Windows PC to Tackle Enterprise Legacy Code > Cognition's AI engineer Devin can now build, run, and test native Windows apps in a cloud VM, unlocking .NET migrations and GUI testing for enterprises For the past two years, Devin has lived exclusively in Linux. That made sense for web services, cloud-native apps, and open-source tooling. But a huge chunk of enterprise software, the kind running inside banks, manufacturers, and government agencies, was always out of reach. [Cognition just changed that](https://cognition.ai/blog/devin-is-getting-a-windows-pc): Devin now runs inside a full Windows virtual machine in the cloud, able to build, execute, and test native Windows applications end to end. ## The Wall That Just Came Down The limitation was not philosophical, it was technical. Devin could generate migration code for .NET Framework, but couldn't build or test it because .NET Framework only runs on Windows. That single constraint made Devin useless for one of the most common and painful enterprise tasks: modernizing legacy Windows codebases. Now that constraint is gone. Windows runs on over 1.4 billion devices and is deployed everywhere from Fortune 500 companies to the living rooms of indie developers. Devin now builds, runs, and tests natively in its own Windows VM. The agent gets a real machine, not a compatibility shim or emulation layer. ## What Devin Can Actually Do on Windows Three capabilities unlock with this release: - **Build and modernize legacy apps.** Devin can now operate natively in a Windows environment, bringing the full power of autonomous AI engineering to the world's most mature developer ecosystem. The benefits of cloud AI agents, including task delegation, parallel execution, and autonomous iteration, now apply to Windows applications. That means VB apps, Windows Forms, classic ASP, and anything else that predates the current team. - **.NET Framework to .NET Core migration with real validation.** Devin now builds, runs tests, and iterates in a real Windows environment until the migration passes. Some behavior can only be verified by actually running the application. Previously, an agent could write the migration code but had no way to confirm it actually compiled and ran correctly. - **GUI testing via computer use.** Devin can build and launch Windows applications and interact directly, clicking through the UI to verify behavior is as expected. This is the same computer-use capability Devin has on Linux, now applied to native Windows GUIs. The Windows toolchain support is also native: from .NET Framework to .NET Core, or SQL Server workflows to modern pipelines, Devin builds, tests, and iterates in a real Windows environment until the outcome is validated. MSBuild, IIS, PowerShell, and Windows Services all work because Devin is running inside the environment those systems actually depend on. ## Why This Matters for Enterprise Teams Legacy modernization is one of the most expensive line items in enterprise engineering budgets. Engineering teams dread migrating from .NET Framework to .NET Core. However, autonomous coding agents are rapidly changing the previously known timelines. What once took months, teams are now finishing in as little as two weeks with Devin. The customer data Cognition has published backs this up. Existing Devin customers have reported a 70% reduction in time spent on .NET migration, and 10,000+ hours saved annually on Angular version upgrades. Those numbers came from Linux-based workflows. Windows support opens the same playbook to a much larger surface area of enterprise code. Engineering teams across industries, including Citi and Mercedes-Benz, already use Devin to complete migrations, write tests, build new features, and harden their codebases, running many tasks at once to multiply their engineering capacity. Windows support extends that to the part of the stack those organizations have historically had to touch by hand. ## The Computer Use Angle Is Underrated Most discussion around AI coding agents focuses on code generation and PR creation. The GUI testing capability deserves more attention. A large class of Windows application bugs only surface when you actually click through the interface. Regression testing Windows desktop apps has historically required either expensive manual QA or brittle UI automation scripts that break with every UI change. Devin's computer use approach sidesteps both: it launches the app, navigates it like a human tester, and reports what it finds. That loop, build, launch, click, verify, is now fully autonomous. ## Security and Availability Devin on Windows carries the same enterprise security and governance controls as Devin on Linux. Sessions run on isolated VMs, and no customer code is used for training. The platform is SOC 2 Type II and ISO 27001 compliant, with SSO and RBAC support included. On availability: Windows VM support was added in May 2026, and is currently in beta for Enterprise Cloud and Dedicated Deployment customers. Broader rollout is underway. On pricing, Devin offers a $20/month Core plan, a $500/month Team plan, and a custom-priced Enterprise plan, with each plan including a set number of Agent Compute Units (ACUs) that measure Devin's work. One ACU works out to about 15 minutes of Devin actively working. Windows VM access is gated to Enterprise tiers for now; you can [sign up or contact sales on the Devin for Windows page](https://devin.ai/windows). ## Known Limitations Devin on Windows is still in beta, and the caveats that apply to Devin generally apply here too. Early user feedback highlighted growing pains, with researchers and testers noting that the agent sometimes struggled with overly complex code, unnecessary abstractions, and inconsistent task performance. Complex Windows-specific dependency chains, COM interop, and deeply entangled legacy codebases will still require human judgment at key decision points. Early feedback suggests Devin may still get stuck on complex tasks or require substantial human oversight, and this need for supervision from senior engineers adds a hidden cost that impacts its overall value proposition. ## The Bigger Picture The implicit assumption in the AI coding agent space has been that the target environment is Linux and the cloud. That assumption made sense when the tools were being built, but it left a massive blind spot: the decades of Windows-native software that enterprises actually run their businesses on. In a world where engineering resources are scarce, large-scale migrations and modernizations become massively expensive, time-consuming projects that distract from any engineering team's core mission. Unfortunately, this is the reality for many of the world's largest organizations. Devin for Windows is a direct answer to that reality. The agent can now go where the legacy code actually lives, run it, break it, fix it, and ship the result, without a human having to spin up a Windows dev environment and babysit the process. For any team sitting on a backlog of .NET Framework apps they've been putting off modernizing, this is the most practical unlock Cognition has shipped yet. ## Sources - [X post by @cognition](https://x.com/cognition/status/2057496130225668360) - [Devin is Getting a Windows PC | Cognition](https://cognition.ai/blog/devin-is-getting-a-windows-pc) - [Devin for Windows | Devin](https://devin.ai/windows) - [Automating .NET Framework to .NET Core with Devin | Cognition](https://cognition.ai/blog/dotnet-migration-with-devin) - [Devin Pricing: Feature Breakdown & Is It Worth It in 2026? | Lindy](https://www.lindy.ai/blog/devin-pricing) - [Devin 2.0 is here: Cognition slashes price | VentureBeat](https://venturebeat.com/programming-development/devin-2-0-is-here-cognition-slashes-price-of-ai-coding-agent)