Libnghttp2.dll: What is It & How to Fix Errors Related to It?

If you have encountered The program can’t start because Libnghttp2.dll is missing or not found error message when launching an app, this guide can help!

What is Libnghttp2.dll?

Libnghttp2.dll is a dynamic link library associated with the NGHTTP2 or HTTP/2 C library. You may encounter the Libnghttp2.dll not found error when the related app is corrupted, installation files are missing, system files are damaged, or the DLL file itself is deleted or corrupted.

How can I fix the Libnghttp2.dll missing error?

Before you proceed with the advanced troubleshooting steps, make sure you perform these quick fixes:

• Check the Recycle Bin to make sure the file is not accidentally deleted
• Reboot your computer to eliminate the temporary technical glitches
• Check for Windows updates & install them if available
• Run a full system scan using a trusted third-party antivirus tool

1. Download a DLL fixer tool

If you have multiple Windows computers with the same Windows iteration and architecture, you can copy it from another PC to a USB drive and then move it to the affected machine.

However, if you don’t have another PC and are short on time, you can use a reliable third-party DLL fixer tool to fix the issue quickly. You just need to download and install the DLL fixer and run it.

2. Reregistering the DLL file

1. First, go to C:\WINDOWS\System32 and check if the file is present. Once confirmed, press the Windows key, type cmd in the search box, and choose Run as administrator from the list of options to launch Command Prompt with administrative privileges.
2. To re-register the Libnghttp2.dll file, copy & paste the following command and hit Enter: regsvr32 Libnghttp2.dll
3. Click OK to confirm, then reboot your computer to save the changes.

If the file is not present, you can skip this Method.

3. Reinstall the affected app

1. Press Windows + I to open the Settings app.
2. Select Apps from the left pane and click Installed apps.
3. Locate the affected app, click the three-dot icon, and select Uninstall from the context menu.
4. Choose Uninstall again to confirm.
5. Follow the on-screen prompts to complete the process.
6. Go to the official website or Microsoft Store to download & install the app.

4. Run SFC & DISM scans

1. Press the Windows key, type cmd in the search box, and select Run as administrator from the list of options to open Command Prompt with administrator privileges.
2. To scan and repair the damaged or missing system files, type the following command and press Enter: sfc /scannow
3. Wait for the scan to complete, and if you still face the Libnghttp2.dll missing error, copy & paste the following command to restore the Windows system image files using Windows Update, and hit Enter: Dism /Online /Cleanup-Image /RestoreHealth
4. The scan will take some time to execute successfully. Once done, reboot your computer to let the changes take effect.

5. Perform a System Restore

1. Press Windows + R to open the Run dialog box.
2. Type sysdm.cpl and click OK to open the System Properties window.
3. Go to the System Protection tab, then select System Restore.
4. The System Restore wizard will launch. Select Choose a different restore point and click Next to proceed.
5. From the list of restore points available, select the one created before you encountered the libnghttp2.dll missing error, then click Next.
6. Click Finish.

Windows will restart and restore your system settings to the chosen point. However, if you get the System Restore is Not Working error after the restart, power failure, or antivirus interference are usually the reasons; check out this guide to learn about other solutions.

6. Download the DLL file manually

NOTE

If none of the above methods worked for you, and you are comfortable getting a DLL fixer, you can get the DLL file from a reliable third-party website like DLL-ME, verified and tested by WR experts, and paste it into the default folder.

1. Click this DLL-ME website link to open the libnghttp2.dll page. Click the Download button.
2. Choose the version you want to download and click Select.
3. Click Start Download.
4. A zip file will be downloaded; double-click the folder to open and locate the DLL file, then copy it.
5. Go to this path after replacing C with your system drive letter if it is not C for you: C:\WINDOWS\System32
6. Paste the DLL file and reboot your PC to save the changes.

In conclusion, to fix the libnghttp2.dll missing error, reinstall the affected app, download a third-party DLL fixer tool, re-register the DLL file if it is present, repair the corrupted system files using the SFC & DISM utility tool, restore your PC to an older version or get the DLL file from a third-party site.

Do you often encounter missing DLL file issues in Windows 10 and want to avoid them? Check out this guide to learn why and simple ways to fix it.

Before you go, don’t forget to read our detailed guide on steps to take if you encounter the p5dll.dll missing from your computer error. We have also covered the WLXPhotoBase.dll missing issue in a separate guide.

If you have suggestions or questions about this DLL error, feel free to mention them in the comments section below. We’re happy to interact.