Internet Explorer final exit is 2029, Microsoft says

Microsoft has set a clearer deadline for the last surviving part of Internet Explorer. The company is now telling admins that IE mode in Microsoft Edge will remain supported through at least the end of 2029 and is urging organizations to begin mapping their remaining dependencies now.

Internet Explorer 11's desktop app stopped receiving support on most consumer versions of Windows 10 in June 2022. What remains is the legacy Internet Explorer that we all know now resides inside Microsoft Edge: an enterprise compatibility feature that can still run legacy sites.

Microsoft now says this feature will be supported at least through the end of 2029, with at least a year's notice before it retires. For most people and regular users, nothing is changing. For businesses still relying on old internal apps, the reminder is a deadline to plan around.

Key takeaways

• Internet Explorer 11's desktop app went out of support on June 15, 2022, for most Windows 10 consumer deployments.
• Edge's IE mode, which uses IE11's Trident/MSHTML engine for administrator-approved legacy sites, is supported until at least the end of 2029.
• Microsoft says it will give at least 12 months' notice before retiring IE mode.
• Regular consumers shouldn't need to enable or use IE mode; keeping Edge, Windows and other browsers updated remains the relevant security step.
• Businesses should treat the notice as a migration milestone: inventory old sites, decide whether to update, replace, rehost or rebuild them, and reduce dependency on the legacy engine.

What is actually going away in 2029?

The simple version is that Internet Explorer itself is already gone. Microsoft ended support for the IE11 desktop app on certain Windows 10 editions on June 15, 2022, and later permanently disabled it on many of those systems via an Edge update.

Microsoft recommended Edge as the replacement, including its built-in compatibility option for organizations still using legacy web apps. Microsoft's lifecycle notice documents that transition.

The remaining piece is Internet Explorer mode, or IE mode, in Microsoft Edge. It isn't a second browser users can casually choose from a menu. IT administrators can designate specific websites to open using the legacy rendering technology while other pages continue to use Edge's modern Chromium engine.

Microsoft says IE mode uses the IE11 Trident/MSHTML engine for those legacy pages and supports features such as document modes, ActiveX controls and Browser Helper Objects that older business software may still expect.

Why IE mode lasted longer than the browser

IE mode exists because a clean break can break work and important projects. After being an important part of many companies' infrastructure, it created a lot of dependencies.

For example, an organization could depend on a site that needs an old document mode, an ActiveX control or a page designed around IE-specific behavior. Edge lets administrators place those named sites on an Enterprise Mode Site List, so only those destinations load with the legacy engine.

Microsoft's current documentation makes that boundary explicit: only sites configured by policy should use IE mode. It also says IE mode requires current Windows and Edge updates, warning that failing to install them can cause the feature to fail.

What regular users should do

For a typical home PC, this news is mostly historical context. You don't need to hunt for IE mode, change browser settings or keep an obsolete browser installed. If a website tells you to download Internet Explorer, treat that as a warning sign that the site is outdated; if it asks you to install an unfamiliar browser extension or executable to make that happen, stop and verify the site independently.

The useful steps are simpler:

• Keep Windows and your browser updated, then restart the browser when it asks you to do so.
• Use a supported browser such as Edge, Chrome, Firefox or Safari, rather than trying to revive IE11.
• Be careful with links and downloads that claim you need an "IE fix" or a special compatibility tool. Browser transitions are a familiar hook for scams and unwanted software.

Browser updates matter because browser flaws can expose people simply through a malicious or compromised webpage. Bitdefender recently covered an actively exploited Chrome flaw, a useful reminder that supported software and timely patches are a security control, not just a convenience.

The final exit is a deadline, not a reason for alarm

The word "finally" fits the cultural story of Internet Explorer, but the technical reality is deliberately measured. Microsoft has already retired the consumer-facing browser. Its 2029 support floor for IE mode is a warning for the small but consequential set of organizations whose old web applications remain tied to it.

Most people should keep using a supported, updated browser and stay wary of compatibility-themed downloads. Companies should use the time they have to shrink their IE mode list until it is empty. By the time the final retirement notice arrives, the goal should be for it to be uneventful.

“This is a reminder, not a rollout of a new feature or capability. IE mode support continues through at least the end of 2029 across Worldwide, GCC, GCC High, and DoD environments. Microsoft will provide at least one year of notice before retiring IE mode.”

FAQ

Is Internet Explorer still supported?

No. IE11's desktop app went out of support on most Windows 10 systems in June 2022. It is not an everyday browser for consumers.

What is IE mode in Microsoft Edge?

It is an Edge feature that lets selected old business sites use IE technology. It is not intended for normal browsing.

When will IE mode end?

Microsoft will support IE mode through at least the end of 2029 and promises at least one year's notice before retiring it.

Do home users need to do anything?

No. Keep Windows and your supported browser updated, and avoid downloads that claim to restore or fix Internet Explorer.

What should businesses do now?

List every IE-mode site, assign an owner and plan to update, replace or rebuild it before the support window closes.