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How to Fix RunDll Error on Startup - 5 WaysHOT
ConclusionHOT
FAQs About RunDll Error on StartupHOT
About the Author
Hot Topics
Updated on Jul 10, 2025
Are you facing a RunDll error at Startup? Below is a real user case from the Microsoft Community:
Do you know what this is, and how can you fix it? EaseUS will explain and simplify the RunDll error during Startup and provide a step-by-step guide to fix this common issue. Keep reading and learn about the underlying causes of the RunDLL error and detailed troubleshooting steps.
A RunDll error on Startup manifests as a pop-up dialog box, indicating a failure to execute a Dynamic Link Library (DLL) file during the initialization of your Windows operating system.
These errors are often caused by corrupted or missing DLL files, causing a hiccup in the seamless startup process. When your system encounters a RunDll error, it signifies a struggle to locate and load the necessary DLL, hindering the execution of specific programs or processes.
To better understand and address this issue, exploring the root causes is crucial. Common triggers include malware infections, improper software installations, or system file corruption.
Now, let's fix the RunDll error on Startup step-by-step. In this section, we'll guide you through four different methods to fix this issue. Below are some one-click buttons to help you share this guideline on your social media:
If you want to quickly solve the RunDll error during Startup without any effort, use the capabilities of EaseUS Partition Master Professional. This powerful tool goes beyond conventional solutions, offering a comprehensive approach to fixing startup issues. It specializes in addressing boot-related issues, making it a go-to solution for resolving RunDll errors during Startup.
Follow the steps:
Step 1. Start EaseUS Partition Master after connecting the external drive/USB to your computer, go to "Bootable Media," and click "Create bootable media."
Step 2. Select an available USB Drive or CD/DVD and click "Create." You can also burn the Windows ISO file to the storage media.
Step 3. Connect the created bootable drive to the new computer and reboot the computer by pressing and holding F2/Del to enter the BIOS. Then, set the WinPE bootable drive as the boot disk and press F10 to exit.
Step 4. Boot the computer again and enter the WinPE interface. Then, open EaseUS Partition Master and click "Boot Repair" under the "Toolkit" option.
Step 5: Select the system you want to repair and click "Repair."
Step 6. Wait a moment, and you will receive an alert that the system has been successfully repaired. Click "OK" to complete the boot repair process.
Other Key Functions of EaseUS Partition Master
Here are some applicable scenarios that related to the RunDll error at Startup:
EaseUS Partition Master can automatically scan your system disk to check and fix bad sectors, file system errors, and other disk errors efficiently. Download and follow the tutorial:
Step 1. Right-click the target partition that may have a problem.
Step 2. Choose "Check" > "Check File System".
Step 3. In the Check File System window, check the "Try to fix errors if found" option by clicking the "Start" button.
Step 4. Please wait patiently. After the process, you can click the "Finish" button to exit the window.
Microsoft Autoruns is a powerful utility designed to help users identify and manage programs that are configured to run automatically during system startup or user login. You can use download Autoruns to fix RunDll Error on Startup:
Step 1. Right-click autoruns64.exe and select "Run as Administrator" after unzipping it.
Step 2. Make sure that "Hide Empty Locations" is checked in Autoruns Options and that "Hide Windows Entries" and "Hide Microsoft Entries" are both unchecked.
Step 3. To apply the Quick Filter, type rundll.
Step 4. After clicking on each entry you've identified, the full file path should appear at the bottom of the Autoruns window.
Step 5. If RnbmrWebPEndrsrv.dll is mentioned in the path, right-click on the entry and remove it.
As a corrupt shared DLL file could cause this issue, resolving RunDll errors on Startup can also be achieved through Windows startup repair. Follow the steps:
Step 1. Go to Windows Settings by pressing the "Windows+I" buttons simultaneously.
Step 2. Click "Update & Security" and "Recovery" from the left menu.
Step 3. Click "Restart now" under "Advanced startup."
Step 4. Your system will be prompted to a new Window for more options. Navigate to "Advanced options" and click "Startup Settings."
Step 5. Click "Enable Debugging" in the new list of settings.
You can also manually fix the RunDll error startup by navigating Registry Editor. Follow the steps:
Step 1. Launch the "Run" box using the "Windows+R" buttons simultaneously. Type regedit and press the "Enter" button to launch Registry Editor.
Step 2. In "Registry Editor," you need to find the file name shown in the RunDLL error. Simply use "Ctrl+F" to bring up the search feature, type that file name, and click the "Find Next" option. It can take some time to bring up the corresponding file, so wait a while.
Step 3. Right-click on that entry, click "Delete" to delete associated with the missing DLL file, and close Registry Editor.
Step 4. Again, open the Run dialog box, type taskschd.msc, and press "Enter" to launch Task Scheduler.
Step 5. Click Task Scheduler Library and find the central panel for entries corresponding to the file mentioned in the RunDLL error message. Disable any identified entries by right-clicking and selecting "Disable." After successfully disabling the process, close the Task Scheduler.
Step 6. Finally, restart your PC to see if these modifications solve the issue and if the RunDLL error is removed.
The temporary files in Appdata may hinder the RunDLL from running correctly at startup. To address this issue, you can delete temporary files in Windows as follows:
Step 1. Press the Windows key + R to launch the Run dialog.
Step 2. In the Run dialog box, search C:\Users\*Your Username*\AppData\Local\Temp and press Enter.(Replace your username with the correct one.)
Step 3. Use the "Ctrl + A" keys to select all files, right-click, and choose "Delete."
Regarding Startup errors, you may like to read the following practical posts:
Navigating the complexity of the RunDll error on Startup is now straightforward work to fix it. This guide has disclosed the causes behind these disorders and provided step-by-step solutions.
For efficient and user-friendly resolution, consider EaseUS Partition Master. This tool not only fixes RunDll errors but also optimizes system performance through streamlined disk space management. Download EaseUS Partition Master for a hassle-free startup.
Whether opting for quick solutions or manual methods, you're now equipped to beat RunDll errors and ensure a stable and error-free initiation. Enjoy your computing experience by implementing the recommended solutions or exploring EaseUS Partition Master's capabilities.
If you have more questions or queries about the RunDll error, you may find the appropriate from these FAQs.
1. How do I fix Rundll on Windows 11?
While the specific methods can differ slightly between Windows versions, the core principles remain constant. Whether you're on Windows 11 or another version, consider these options:
2. How do you fix the Rundll32 issue?
Windows' built-in SFC tool scans and repairs corrupted system files like rundll32. Follow the steps:
Step 1. Open Command Prompt as administrator.
Step 2. Input "sfc /scannow" and press Enter to initiate the scan.
3. How can I fix DLL errors in Windows 10?
Fix DLL errors on Windows 10 by following these steps:
Step 1. Open Command Prompt as administrator.
Step 2. Input "DISM.exe /Online /Cleanup-Image /RestoreHealth" and press Enter to run the Deployment Image Service and Management Tool.
How Can We Help You
Updated by Tracy King
Tracy became a member of the EaseUS content team in 2013. Being a technical writer for over 10 years, she is enthusiastic about sharing tips to assist readers in resolving complex issues in disk management, file transfer, PC & Mac performance optimization, etc., like an expert.
Cici is the junior editor of the writing team of EaseUS. She accepted the systematic training on computers at EaseUS for over one year. Now, she wrote a lot of professional articles to help people resolve the issues of hard drive corruption, computer boot errors, and disk partition problems.
It won't hot image your drives or align them, but since it's coupled with a partition manager, it allows you do perform many tasks at once, instead of just cloning drives. You can move partitions around, resize them, defragment, and more, along with the other tools you'd expect from a cloning tool.
Read MoreI love that the changes you make with EaseUS Partition Master Free aren't immediately applied to the disks. It makes it way easier to play out what will happen after you've made all the changes. I also think the overall look and feel of EaseUS Partition Master Free makes whatever you're doing with your computer's partitions easy.
Read MorePartition Master Free can Resize, Move, Merge, Migrate, and Copy disks or partitions; convert to local, change label, defragment, check and explore partition; and much more. A premium upgrade adds free tech support and the ability to resize dynamic volumes.
Read MoreIt won't hot image your drives or align them, but since it's coupled with a partition manager, it allows you do perform many tasks at once, instead of just cloning drives. You can move partitions around, resize them, defragment, and more, along with the other tools you'd expect from a cloning tool.
Read MoreI love that the changes you make with EaseUS Partition Master Free aren't immediately applied to the disks. It makes it way easier to play out what will happen after you've made all the changes. I also think the overall look and feel of EaseUS Partition Master Free makes whatever you're doing with your computer's partitions easy.
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Sign up to our newsletter, stay updated on news and exclusive offers from EaseUS. Don't worry, if you change your mind, you can unsubscribe at any time, free of charge. We value your privacy (Privacy Policy).