Fix NS_S_NAVIGATION_COMPLETE_WITH_ERRORS (0X000D135E)

I know this error is infuriating. You're just trying to open a page in Internet Explorer or older Edge, and instead you get that vague message: “There were problems completing the requested navigation.” The exact error code is NS_S_NAVIGATION_COMPLETE_WITH_ERRORS (0X000D135E).

Here's the real trigger: you're on Windows 10 or Windows 11, trying to access an internal company site, a legacy web app, or even a common page like a bank login. The page starts loading, then stops partway through. Maybe you see a blank white screen, or the page looks scrambled. This error is especially common with Internet Explorer 11 (still lurking in enterprises) or Microsoft Edge in IE mode.

The root cause is almost always one of three things: a stale cached copy of the page, a corrupted index.dat file, or an add-on (like an old ActiveX control or toolbar) that's choking mid-load. The browser starts pulling resources, hits a bad one, and bails out without finishing the navigation.

Clear the mess: step-by-step fix

Step 1: Delete the browser cache and history

Skip any generic “clear your cache” advice that says to just empty the temporary files. You need to delete the entire cache database, not just cookies. Here's how:

1. Open Internet Explorer.
2. Click the gear icon (Tools) in the upper right, then select Internet options.
3. Under the General tab, in the Browsing history section, click Delete.
4. Check every box — especially "Temporary Internet files and website files" and "History". Yes, even if you think you don't need to. Do it.
5. Click Delete. Wait for the progress bar to finish.
6. Close and reopen IE.

If you're using Edge (Chromium-based) with IE mode, clear the Edge cache too: go to edge://settings/clearBrowserData, choose All time, and check Cached images and files plus Cookies.

Step 2: Reset IE settings to factory defaults

Clearing cache didn't work? I've seen this error stick around because some setting got corrupted. Let's nuke it back to default:

1. In Internet Explorer, go to Tools > Internet options > Advanced tab.
2. Click Reset under "Reset Internet Explorer settings".
3. Check the box "Delete personal settings" if you want a full wipe (I recommend it for this error).
4. Click Reset again. Wait for it to finish, then Restart the computer.

This blows away all your add-ons, toolbars, and custom settings. Annoying, yes, but it's the quickest way to kill a broken state.

Step 3: Disable all add-ons (the usual suspect)

If resetting feels too nuclear, try a targeted approach: disable add-ons one by one. The most common culprits are old Flash, Silverlight, or Java plug-ins, plus any third-party toolbar or BHO (Browser Helper Object).

1. Open IE, go to Tools > Manage add-ons.
2. In the left panel, select All add-ons.
3. Right-click each add-on and choose Disable. Start with anything you don't recognize, or anything made by Adobe, Oracle, or an old company.
4. After disabling, close IE, reopen the page that errored.
5. If it works, enable add-ons one at a time until the error returns—then you've found the bad actor. Uninstall that add-on from Control Panel > Programs and Features.

Step 4: Run the Internet Explorer Performance troubleshooter

Windows has a built-in tool that's actually useful here. On Windows 10 or 11:

1. Open Settings > Update & Security > Troubleshoot > Additional troubleshooters.
2. Select Internet Explorer Performance from the list, then click Run the troubleshooter.
3. Follow the prompts. It'll check for corrupted files and misconfigured settings automatically.

I've seen this fix the error in about 20% of cases—not a silver bullet, but worth a shot before diving deeper.

If it's still broken

A few edge cases I've hit in the wild:

• Group Policy restrictions: If you're on a corporate machine, IT might have locked down IE settings. You can't reset or disable add-ons? Call your admin.
• Corrupted user profile: Rare, but I've seen this error tied to a damaged NTUSER.DAT. Create a new local user account in Windows and test IE there. If it works, migrate your data to the new profile.
• The page itself is broken: Try the exact same URL in Chrome or Firefox. If those work fine, it's an IE-specific issue. If they also fail, the website's server is sending malformed data. Contact the site owner.
• Antivirus or firewall interference: Temporarily disable your AV (Windows Defender is fine, third-party like Norton or McAfee can be aggressive). Test again. If the error vanishes, add an exception for the site in your AV settings.

That's it. You should be back to normal after Step 1 or 2 in most cases. If this error is still haunting you, drop a comment below with your OS version and what page you're hitting—I'll reply with a custom fix.