How to Stop Microsoft Edge Opening Multiple Windows in Windows 10 and 11

Identify What Triggers the Extra Edge Windows​

Multiple Edge windows usually come from two separate features trying to restore or launch the browser at the same time, or from an extension or shortcut passing extra window commands. Before changing every setting at once, note when the extra windows appear:

• At Windows sign-in or after a restart: Windows can automatically save and reopen Edge windows that were active when you shut down. If Edge is also configured as a Windows startup app—or has a shortcut in your Startup folder—Windows reopens your old session and launches an extra browser window on top of it.
• Every time you open Edge after closing it: Edge's Open tabs from the previous session or Open these pages startup setting may be restoring multi-window sessions, a shortcut's Target field may contain extra launch arguments, or a mouse button may be registering an accidental double-click on the taskbar icon.
• Randomly or seconds after the first window loads: A session-manager, new-tab, or adware extension—often kept alive in memory by Edge's background-apps setting—is spawning a second window after startup.

Before starting the steps below, save any active work in your open tabs and sign in to the Windows user account experiencing the issue. If you use a company- or school-issued PC, note that an administrator policy can lock or re-apply startup settings.

Configure Microsoft Edge Startup and Background Settings​

Start inside Microsoft Edge to make sure the browser itself is configured to launch a single window and is not keeping old extension processes alive after you close it.

1. Open Microsoft Edge, select Settings and more (the three-dot icon in the upper-right corner, or press Alt + F), and select Settings.
2. In the left pane, select Start, home, and new tab page (labeled Start, home, and new tabs in some Edge builds). If the left navigation pane is hidden, select the three-line menu button in the upper-left corner of the Settings tab first.
3. Under When Edge starts, check which radio button is selected:
   • Select Open the new tab page to make Edge open a single window with one New Tab page whenever it starts.
   • Note that if Open tabs from the previous session was selected, Edge restores every window that was open if the browser exited all at once—such as during a Windows restart or via Settings and more > Close Microsoft Edge—rather than closing secondary windows individually before closing your main window.
   • If you want to keep Open these pages, review the list of saved pages underneath it. Select More actions (...) beside any duplicate or unfamiliar entry and select Delete.
4. In the left pane of Settings, select System and performance. If Edge shows sub-sections at the top of the right pane, select System.
5. Set Continue running background extensions and apps when Microsoft Edge is closed to Off. Leaving this on allows background extension scripts to stay active in the system tray and trigger extra browser windows when Edge wakes up.
6. Set Startup boost to Off temporarily while troubleshooting. Startup boost keeps core msedge.exe processes running in the background after you close the browser; turning it off forces Edge to terminate completely between tests so stale window states are cleared.
7. Close every open Microsoft Edge window.

Turn Off Windows Automatic App Restart and Duplicate Startup Entries​

Microsoft Edge registers with Windows as a restartable application. When Windows' restartable-apps setting is turned on and you restart or shut down your PC with Edge still open, Windows automatically reopens those Edge windows at your next sign-in. Combining that feature with a Windows startup entry for Edge commonly produces two or more browser windows immediately after login.

Warning: Turning off Windows' restartable-apps option applies to your entire user account, not only Microsoft Edge. Other compatible apps that were left open at shutdown—including File Explorer windows when linked in newer Windows 11 builds—will also stop reopening automatically after a reboot. Instructions to turn this back on safely once you remove duplicate triggers are at the end of this guide.

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Windows 11​

1. Press Win + I to open Settings.
2. Select Accounts in the left sidebar, then select Sign-in options.
3. Scroll down to Additional settings and switch Automatically save my restartable apps and restart them when I sign back in to Off.
4. In the left sidebar of Settings, select Apps, then select Startup.
5. Locate Microsoft Edge in the application list. If its toggle is On and you do not want Edge opening automatically every time you sign in, switch it to Off.

Windows 10​

1. Press Win + I to open Settings, then select Accounts.
2. Select Sign-in options in the left pane.
3. Scroll down to the Restart apps section and switch Automatically save my restartable apps when I sign out and restart them after I sign in to Off.
4. Return to the main Settings home screen, select Apps > Startup, and switch Microsoft Edge to Off if it is enabled.

Check the Windows Startup Folders (Windows 11 and Windows 10)​

Shortcuts placed manually or by third-party installers inside Windows' Startup folders run at sign-in even when Settings > Apps > Startup shows Edge turned off. Check both your personal Startup folder and the shared all-users Startup folder:

1. Press Win + R to open the Run dialog, type shell:startup, and press Enter.
2. File Explorer opens your account's Startup folder (%APPDATA%\Microsoft\Windows\Start Menu\Programs\Startup). Delete any extra Microsoft Edge shortcuts or web-page shortcuts you do not want launching automatically at sign-in.
3. Press Win + R again, type shell:common startup, and press Enter.
4. File Explorer opens the all-users Startup folder (%ProgramData%\Microsoft\Windows\Start Menu\Programs\Startup). Delete any unwanted Microsoft Edge shortcuts listed there. Modifying this shared folder affects every Windows account on the PC and requires administrator confirmation.

Isolate Browser Extensions and Check Edge Shortcuts​

If extra windows still appear when you launch Edge manually during a normal session, an installed extension or a modified shortcut is the most likely cause.

Disable Extensions to Test for Session Managers or Adware​

Tab managers, workspace savers, shopping assistants, and unwanted browser hijackers can programmatically open companion windows or pop-up windows whenever Edge initializes.

1. Open Microsoft Edge and select Settings and more (...) > Extensions > Manage extensions (or type edge://extensions into the address bar and press Enter).
2. Turn the toggle Off for every installed extension.
3. Close all Edge windows.
4. Press Ctrl + Shift + Esc to open Task Manager. Under the Processes tab, look for Microsoft Edge. If any Edge process is still running, right-click Microsoft Edge and select End task.
5. Launch Microsoft Edge again.
6. If Edge now opens a single window cleanly, reopen Manage extensions and turn your extensions back On one or two at a time, closing and relaunching Edge after each change.
7. As soon as an extension triggers the extra window again, select Remove underneath that extension and select Remove again to confirm.

Inspect Edge Shortcuts for Appended Arguments​

A shortcut pointing to msedge.exe can include space-separated web addresses or command-line switches after the executable path, instructing Edge to open multiple destinations or force a new window.

1. Open the Properties window for the icon you use to start Edge:
   • For a Desktop shortcut: Right-click the Microsoft Edge shortcut on the Desktop and select Properties.
   • For a pinned taskbar icon: Right-click the Microsoft Edge icon on the taskbar, then right-click Microsoft Edge (or the profile-specific Edge name) in the pop-up menu and select Properties.
2. On the Shortcut tab, click inside the Target text box and press the End key to scroll all the way to the right.
3. Confirm that the Target field contains only the quoted path to the Edge executable—typically "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" or "C:\Program Files\Microsoft\Edge\Application\msedge.exe".

Warning: If you intentionally set up separate shortcuts for different Edge profiles (such as Personal and Work), a legitimate profile shortcut includes an argument like --profile-directory="Default" or --profile-directory="Profile 1" after the closing quotation mark. Removing --profile-directory causes that icon to open whichever profile was used last instead of your dedicated profile. Leave intentional profile flags intact, and delete only unfamiliar web addresses or --new-window switches.

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1. If you removed unwanted text after "msedge.exe", select Apply and then OK (approve the administrator prompt if requested).
2. If a pinned taskbar icon continues opening extra windows, right-click the Edge icon on the taskbar and select Unpin from taskbar. Open the Start menu, launch Microsoft Edge once, right-click the active Edge icon on the taskbar, and select Pin to taskbar to create a clean shortcut.

Verify That Edge Launches a Single Window​

Run both a manual launch test and a full restart test to confirm the fix holds:

1. Close all open Microsoft Edge windows.
2. Press Ctrl + Shift + Esc to open Task Manager and verify that Microsoft Edge does not appear under Apps or Background processes.
3. Click your Edge taskbar or Desktop icon once. Confirm that exactly one browser window opens to the New Tab page.
4. Select Start > Power > Restart and sign back in to Windows.
5. Wait 15 to 30 seconds after the desktop loads to verify that no unexpected Edge windows pop up automatically, then launch Edge once and confirm only one window opens.

Alternate Method: Reset Microsoft Edge Settings to Default​

If Edge continues opening multiple windows after you have checked startup settings, extensions, and shortcuts, corrupted profile preferences or hidden extension overrides may be stuck in your browser configuration. Resetting Edge returns startup and extension settings to factory defaults without erasing your saved passwords or bookmarks.

Warning: Using Restore settings to their default values resets your startup page, New Tab page layout, default search engine, and pinned tabs. It also disables all extensions and clears temporary data such as cookies, which signs you out of active websites. Your favorites, browsing history, and saved passwords are not deleted. If you sign in to Edge across multiple computers, turn off Settings sync before resetting so another PC does not push the bad configuration back.

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1. If you use Edge Sync across multiple devices, select Settings and more (...) > Settings > Profiles > Sync, and temporarily switch Settings and Extensions to Off.
2. In the left pane of Settings, select Reset settings.
3. Select Restore settings to their default values.
4. In the Reset settings confirmation dialog, select Reset.
5. Close Microsoft Edge completely, reopen it, and confirm that only a single window opens. Afterward, re-enable your trusted extensions individually under Settings and more > Extensions > Manage extensions.

Troubleshooting Persistent Issues and Restoring Preferences​

If extra windows still appear or your changes do not stick, match the symptom below to the underlying cause:

• Startup settings are grayed out or revert after restarting Edge: Open a new tab, type edge://policy in the address bar, and press Enter. Look for RestoreOnStartup and RestoreOnStartupURLs. Policy value 1 forces Edge to restore the last session, 4 opens a fixed URL list, and starting in Microsoft Edge version 125, value 6 (RestoreOnStartupIsLastSessionAndURLs) restores the previous session and opens an administrator-defined URL list at the same time. On a work- or school-managed device, only your IT administrator can change these policies. On a personal, unmanaged PC where adware or third-party optimization software wrote unauthorized local policies under HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Edge or HKEY_CURRENT_USER\SOFTWARE\Policies\Microsoft\Edge, open Windows Security > Virus & threat protection > Scan options and run a Full scan or Microsoft Defender Offline scan before cleaning up unrecognized policy keys.
• Clicking the Edge icon opens two identical windows instantly, every time: Press Win + R, type msedge, and press Enter. If launching Edge from Run opens a single window while clicking the icon with your mouse opens two, either you are double-clicking a single-click taskbar icon or your mouse button has developed hardware switch bounce (sending two clicks per press). Also tap both Shift keys on your keyboard once—a physically stuck or software-latched Shift key instructs Windows to open a brand-new application instance whenever you click a taskbar icon or web link.
• Two windows open under different user avatars or Edge Workspaces: Check the profile badge in the upper-left corner of each Edge window. If one window shows a Personal profile and the other shows a Work profile, open Settings > Profiles > Profile preferences and check Automatic profile switching rules, or check whether an external desktop app (such as Outlook or Teams) is opening links in a designated profile while another profile was already starting. If one of the windows belongs to Edge Workspaces, close secondary Workspace windows individually before closing your main browser window when session restore is enabled.

Restore Session and Performance Features Safely​

Once you confirm what caused the extra windows, you can turn back on the convenience features you want—provided you do not re-enable conflicting startup mechanisms together:

• Re-enable session restore without duplicates: If you want Edge to remember your open tabs, go to Settings > Start, home, and new tab page and select Open tabs from the previous session. Keep Windows' Automatically save my restartable apps... toggle Off (or remove Edge from Settings > Apps > Startup and shell:startup) so Windows does not launch a second browser instance alongside Edge's restored session. Also close auxiliary browser windows before closing your primary Edge window.
• Re-enable Startup boost: Open Settings > System and performance (and System if shown) and switch Startup boost back to On for faster browser launches.
• Re-enable Windows automatic app restart: If you rely on Windows reopening other apps after a reboot, return to Settings > Accounts > Sign-in options and turn Automatically save my restartable apps... back On, then keep Edge's When Edge starts option set to Open the new tab page or close Edge before restarting Windows.
• Re-enable Edge Sync: If you paused sync before resetting Edge, go to Settings > Profiles > Sync and switch Settings and Extensions back On.