Microsoft has officially confirmed that their new operating system, Windows 10, will not be using Internet Explorer as its primary web browser.

The Redmond firm stated that it is currently researching the market to determine what name and brand will be appropriate for their next web browser, but they are currently operating under the codename “Project Spartan.”

While little is known about the new browser, Microsoft has announced a few features already, including the ability to annotate web pages and have those notes synch into OneDrive for collaborators to look at.

Cortana, Microsoft’s Siri-equivalent named after the iconic character from the Halo franchise, will also be integrated into the web browser, in addition to Windows 10 itself.

While Project Spartan will be the Windows 10 primary browser, Microsoft has confirmed that Internet Explorer will still remain in the OS, primarily to maintain compatibility in corporate environments that use heavily modified versions of the browser for day-to-day operations.

Microsoft has tried in the past to overcome the negativity associated with the Internet Explorer brand, but have been unable to. Internet Explorer 6 is still widely regarded as one of the worst programs ever developed.

Images from the conference have shown that Microsoft is specifically targeting users of Google Chrome with their branding on this new browser.

More details are expected soon as Windows 10 nears release. It will be a free upgrade for all users of Windows 7, 8, and 8.1 for the first year after release.