Windows 11 24H2 (W) EOL October 2026 | Budget Planning Guide

What Windows 11 24H2 (W) EOL Means for Your FY2026 Budget

Microsoft Windows 11 24H2 (W) reaches end of life on October 13, 2026. With roughly 13 months until the last security patch, this date lands squarely in the next fiscal year for most organizations. For IT directors and procurement leads building budgets now, the October 2026 deadline is a line item that needs a decision.

What the End-of-Life Date Actually Means

All editions of Windows 11 24H2 (W) — version 10.0.26100 — lose active support and security updates on October 13, 2026. This is not a long-term servicing (LTS) release, so there is no extended patch window baked into the license. After that date, Microsoft will no longer release fixes for newly discovered vulnerabilities on this OS version.

Any device still running 24H2 after October 2026 will be non-compliant with most regulatory frameworks and a clear audit risk. The vendor’s position is clear: migrate to a supported version or pay for extended support (if offered).

Why Migrating on Time Is Harder Than It Looks

A full OS upgrade at enterprise scale typically takes 9–15 months from project start to last device. That timeline assumes:

• Application compatibility testing across hundreds of titles
• Hardware refresh for machines that cannot run the next version
• Staged rollouts with fallback plans
• User training and change management

Many IT teams are still closing out Windows 10 migrations. Starting a fresh Windows 11 upgrade cycle while finishing the last one is a common budget trap: the labor is already allocated elsewhere, and the hardware refresh pipeline is congested.

Comparing the Cost Options for Budget Planning

Your budget request should include at least three scenarios:

1. Full migration to a newer Windows 11 build

• Direct cost: license fees for new versions, hardware refreshes, internal labor.
• Indirect cost: project delays, user productivity dip, risk of uncovered endpoints if the project slips.
• Timeline: 12–18 months minimum for a mid-size organization.

2. Vendor extended support (if available)

• Microsoft sometimes offers paid extended security updates for enterprise editions after EOL, typically priced per device per year, increasing annually.
• Pro: patches keep coming.
• Con: expensive at scale, no new features, and the clock is only paused — you still need to migrate eventually.

3. Third-party support

• A vendor-independent maintenance contract covers security patches and technical support for Windows 11 24H2 (W) after October 2026.
• For many organizations this costs less than either a forced migration or vendor extended support.
• It buys time — often 2–3 years — to plan an orderly upgrade when staff and budget are available.

What to Put in the Budget Request Now

If your fiscal year starts in Q3 2025 or Q1 2026, the line item you need is:

"Windows 11 24H2 EOL mitigation — migration or extended support, FY2026 Q1."

Include a placeholder dollar amount that covers either:

• Hardware refresh + licensing for a large-scale upgrade, or
• Third-party support for the existing 24H2 fleet, or
• Vendor extended support per-device fees.

Don’t wait until summer 2026 to get pricing. The time to run a comparison is now, while you can still negotiate contract terms and secure budget allocation.

Get a Third-Party Support Quote Before Renewal Talks

Before you sit down with your licensing reseller or Microsoft account team, benchmark what third-party support would cost. A fixed-price contract with predictable annual fees gives you a reference point — if vendor extended support is more expensive, you have leverage. If migration costs are higher, you have a viable alternative.

Contact us for a Windows 11 24H2 (W) third-party support quote tailored to your device count and support needs. That baseline number belongs right next to the migration line item in this year’s budget proposal.