In June 2026, international law firm Faegre Drinker became one of the first major legal practices to roll out Microsoft Copilot and the Harvey AI platform to every lawyer and professional staff member, moving the tools from experimental pilots into daily, billable work. The firm’s decision marks a watershed moment for enterprise AI adoption, signaling that large organizations now trust generative AI enough to integrate it into their highest-stakes knowledge work—and to charge clients for that work.

What Changed at Faegre Drinker

Faegre Drinker formally deployed two AI assistants firm-wide: Microsoft Copilot, deeply integrated into the Microsoft 365 suite (Word, Excel, Outlook, Teams, and the Edge browser), and Harvey, a legal-specific AI platform trained on vast corpuses of case law, statutes, and contracts. The rollout extended to all attorneys, paralegals, and administrative staff across the firm’s 22 offices in the U.S., U.K., and China.

The deployment wasn’t a sudden switch. According to the firm’s leadership, it followed an eight-month pilot that began in October 2025, during which 300 early adopters tested the tools on actual client matters under strict governance protocols. Key findings from the pilot shaped the full rollout:

  • Microsoft Copilot handles everyday productivity tasks: summarizing email threads, drafting meeting notes in Teams, generating first drafts of memos and client alerts in Word, building pivot tables in Excel, and performing web research via Edge. Lawyers report saving an average of 6–8 hours per week on routine drafting and information retrieval.
  • Harvey tackles complex legal reasoning: analyzing contracts for risks, synthesizing due diligence findings, drafting litigation briefs, and answering research questions grounded in case law. Harvey’s output is always reviewed by a human lawyer, but the tool reduces the initial research phase from days to hours.

Both tools are available on Windows 11 PCs, macOS, and mobile devices, but the firm standardized on Windows 11 Enterprise for most staff, leveraging Microsoft Intune for policy management and security. The AI features are accessed through the Copilot pane in Microsoft 365 apps and via Harvey’s dedicated web interface.

Crucially, Faegre Drinker established an AI Governance Committee that meets weekly to review usage data, refine acceptable-use policies, and address ethical concerns. The firm also trained every user on mandatory AI literacy modules, with an emphasis on attorney-client privilege, data privacy, and the obligation to verify AI output.

What It Means for You

The Faegre Drinker deployment sends ripples far beyond the legal industry. Here’s what it means for different readers of windowsnews.ai.

For the Everyday Windows User

If you’ve been wondering whether Microsoft Copilot is ready for serious work, Faegre Drinker just gave you a resounding answer. Lawyers are among the most skeptical and risk-averse professionals when it comes to technology. If they’re trusting Copilot with confidential client matters, the tool has passed a high bar for reliability and security. The features the firm highlights—drafting, summarization, data analysis—are exactly what Microsoft has been promoting for all Copilot users. This real-world proof point suggests that your next Windows PC purchase or Microsoft 365 subscription might actually deliver on the AI promises.

For IT Professionals and Windows Administrators

The rollout offers a governance blueprint. Faegre Drinker didn’t just flip a switch. It combined technical controls (via Microsoft Purview for data loss prevention and Copilot’s enterprise compliance features) with human oversight. Key takeaways for admins:
- Phased adoption works. Start with a pilot group, collect metrics, and adjust policies before going broad.
- Training is non-negotiable. Even tech-savvy lawyers needed guided practice to use AI effectively and ethically.
- Integration matters. Harvey’s success alongside Copilot shows that firms want specialized AI for core legal work while using Copilot for general productivity. Your organization might similarly need both a vertical-specific tool and a horizontal assistant.

The deployment intensifies the competitive pressure on peer firms. Ice Miller and Barnes & Thornburg, both Indiana-linked firms like Faegre Drinker, are already testing or scaling their own legal AI initiatives. Firms that delay now risk falling behind both in efficiency and in the ability to attract tech-forward clients and talent. The billing angle is particularly significant: Faegre Drinker has not disclosed exactly how it charges for AI-assisted work, but the firm confirmed that clients are being informed and are accepting of the practice. The American Bar Association’s formal opinion on AI use (expected later this year) will likely provide ethical guardrails that other firms will follow.

How We Got Here

Microsoft Copilot launched for Microsoft 365 in November 2023, but its initial reception in the legal sector was cautious. Law firms worried about hallucinated case citations, confidentiality breaches, and the absence of clear professional conduct rules. Harvey, founded in 2022 by former OpenAI researcher and lawyer Gabriel Pereyra, focused from day one on legal use cases, training on proprietary legal data and partnering with elite firms like Allen & Overy for early access.

The path to Faegre Drinker’s June 2026 deployment was marked by several milestones:

  • December 2023: Allen & Overy announces a firm-wide rollout of Harvey, becoming the first Magic Circle firm to do so.
  • May 2024: Microsoft releases Copilot for Microsoft 365 with enhanced data protection and the ability to ground responses in a tenant’s own data via Microsoft Graph—lowering some confidentiality fears.
  • January 2025: The Indiana Supreme Court forms a task force on AI in the legal profession, signaling that even conservative jurisdictions are grappling with the technology.
  • October 2025: Faegre Drinker launches its pilot.
  • March 2026: Harvey releases version 3.0, which includes jurisdiction-specific fine-tuning and improved citation verification, reducing hallucination rates below 2% in controlled tests.
  • June 2026: Faegre Drinker goes live firm-wide.

That timeline reflects a broader trend: AI tools matured just as regulatory frameworks began to take shape, giving firms enough confidence to move from pilot to production.

What to Do Now

If you’re a decision-maker in a law firm, legal department, or any professional services organization, the Faegre Drinker case offers actionable lessons.

1. Evaluate Your Needs Honestly

Not every organization needs both Harvey and Copilot. Start by auditing where your teams spend the most non-billable time. If it’s document review and legal research, a specialized tool like Harvey, CoCounsel, or Lexis+ AI might be your first priority. If it’s general office productivity, Copilot could deliver faster ROI.

2. Run a Structured Pilot

Faegre Drinker’s eight-month pilot with 300 users generated the data and confidence needed to scale. Your pilot should:
- Include a diverse cross-section of roles (partners, associates, paralegals, IT).
- Define specific success metrics (hours saved, error rates, user satisfaction).
- Engage your risk management and ethics teams from day one.
- Use synthetic or already-cleared client data to avoid privilege issues during testing.

3. Build Governance Before You Go Live

Involve your IT security, compliance, and practice management leaders. Decide on:
- Which data can be processed by AI and under what circumstances.
- How output will be reviewed (e.g., two-lawyer review for court filings, senior review for client communications).
- How to bill for AI-assisted work—some firms are discounting hours, others are treating AI as a paralegal resource with a flat fee.

4. Train Continuously, Not Once

FAegre Drinker mandated initial training and hosts monthly refreshers. AI tools evolve rapidly; your training must keep pace. Emphasize the ethical duty of competence under ABA Model Rule 1.1, which now implicitly includes understanding the benefits and risks of AI.

5. Monitor the Regulatory Landscape

The ABA, state bars, and even international bodies are moving toward formal guidance. Expect an ABA opinion by late 2026, and possibly new Model Rules amendments. Stay plugged into your bar association’s AI committees.

Outlook

Faegre Drinker’s move is likely to be replicated at a dozen more large firms before the end of 2026. Microsoft is already touting the deployment in its customer stories, and one can expect Copilot to gain even more legal-specific features—possibly “expert modes” that behave more like Harvey. Meanwhile, Harvey’s success will attract more vertical AI startups to the legal market. For Windows users, the message is clear: the AI that ships with your operating system and productivity apps isn’t a toy—it’s a tool that can handle the most demanding cognitive work, provided it’s deployed thoughtfully. The question for enterprises is no longer “if” but “how well.”