How to fix “LoadLibrary failed with error 87: The parameter is incorrect” in Windows?

What causes How to fix “LoadLibrary failed with error 87: The parameter is incorrect” in Windows?

DLL file being corrupt or missing
Program or application being improperly configured
System being unable to locate the DLL file
Outdated graphics drivers
Corrupted files

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Hello. I recently installed a program for 3D animation but when I try to launch it I receive the "LoadLibrary failed with error 87: The parameter is incorrect" message in Windows. How do I fix this?

Windows is a popular operating system for personal computers and laptops. It provides a user-friendly interface for accessing and managing files, programs, and system settings on a computer, as well as connecting to the internet and other networks. Windows also includes a range of built-in tools and features for tasks such as productivity, security, and maintenance.

However, often users run into various issues when trying to perform tasks using Windows. "LoadLibrary failed with error 87: The parameter is incorrect" error message may appear in Windows when a program or application is unable to load a dynamic-link library (DLL) file. This can occur for a variety of reasons, such as the DLL file being corrupt or missing, the program or application being improperly configured, or the system being unable to locate the DLL file.

It is also possible that the message appears because of outdated graphics drivers[ref en-1] or corrupted files. In this guide, you will find 7 steps that should help you fix "LoadLibrary failed with error 87: The parameter is incorrect" in Windows. Keep in mind that the manual troubleshooting process may be lengthy.

You can use a maintenance tool like [d1] that can fix most system errors, BSODs,[ref en-2] corrupted files, registry[ref en-3] issues, or clear cookies and cache. Otherwise, follow the step-by-step instructions below.

How to fix loadlibrary failed with error 87 the parameter is incorrect in windows

Method 1. Fix Corrupted System Files

Use Command Prompt commands to repair system file corruption:

Open Command Prompt as administrator
Use the following command and press Enter:
sfc /scannow

Reboot your system
If SFC returned an error, then use the following command lines, pressing Enter after each:
DISM /Online /Cleanup-Image /CheckHealth
DISM /Online /Cleanup-Image /ScanHealth
DISM /Online /Cleanup-Image /RestoreHealth

Method 2. Disable Third-Party Antivirus

Sometimes antivirus software can block legitimate processes mistakenly. You should try disabling your antivirus to see if it gets rid of the "LoadLibrary failed with error 87: The parameter is incorrect" message.

Method 3. Update the Display Driver

Open Device Manager and expand the Display Adapters tab
Right-click on your graphics driver and select Properties
Go to the Driver tab and click on Update Driver
Press on Search Automatically for Drivers

If a graphic driver update is available, install it and then restart your PC
You may also use a dedicated utility like [rev id="DriverFix"] that can find the best drivers for your machine and install them automatically

Method 4. Install the Drivers in Compatibility Mode

Download the latest driver from the manufacturer’s website, then save it on your local disk
Right-click on the driver installation file and select Properties
Go to the Compatibility tab, then check the box next to Run this program in Compatibility mode

Select the Operating System from the drop-down list
The driver will install, then check its functionality
Restart the computer and check if the issue persists

Method 5. Perform Clean Boot

Open the Search menu, type in system configuration, and press Enter
Under the Services tab, tick the Hide all Microsoft services box
Click on Disable all button

Head over to the Startup tab and click on Open Task Manager
Select a third-party program and click on Disable at the top
Repeat this step to disable all third-party apps and programs
Restart your PC to enter the clean boot state and see if the issue persists
If Windows updates in the clean boot state, then you can be certain that a third-party app is causing the issue
Go through all recently installed apps or programs and remove them one by one

Method 6. Use System Restore

System Restore allows users to reverse a Windows system to a previous point before any issues started occurring.

Go to the search bar and type Create a restore point
Click the System Restore button
Select Choose a different restore point and click Next

Select a date for restore before the issue occurred, then click on Next
Enter your password if asked and follow the on-screen steps to choose a restore location
Reset your device

Method 7. Repair Install Windows

Visit the official Microsoft website to download Windows 11 or Windows 10 Installation Media
Run the Media Creation Tool and select Create Installation Media for another PC
Select your USB drive
Let the Process complete of writing the Installation files to the USB drive
Click Finish

On the PC you wish to upgrade, Press Windows + E to open the File Explorer
Open the Removable drive and click Setup.exe
Accept the license terms on the next screen
Confirm the Upgrade options – Files, apps and Settings are kept
Click Install, and the upgrade should start

Bottom line

To fix the 'LoadLibrary failed with error 87: The parameter is incorrect' error, you can repair corrupted system files using Command Prompt, disable third-party antivirus software, or use a maintenance tool. If these methods do not resolve the issue, consider further troubleshooting or seeking professional assistance.

Frequently asked questions

What causes the 'LoadLibrary failed with error 87' message in Windows 10 or Windows 11?

This error typically occurs due to issues with system files, incorrect registry entries, or incompatible software. It can also arise when a DLL file is missing or corrupted.

How can I fix the 'LoadLibrary failed with error 87' error in Windows 11?

You can resolve this issue by running the System File Checker (SFC) and DISM tools to repair corrupted system files. Additionally, ensure that all your drivers and Windows updates are up to date.

Is it possible to resolve the 'LoadLibrary failed with error 87' without reinstalling Windows?

Yes, you can often fix this error by performing a clean boot, updating or reinstalling the problematic application, or restoring your system to an earlier point without needing to reinstall Windows.

Did this fix work for you?

Written & verified by

Ryan Mitchell

Hardware & Driver Specialist

Hardware troubleshooting Driver installation and rollback Device Manager errors USB and peripheral issues Firmware updates

Ryan Mitchell specialises in hardware troubleshooting and driver management for Windows systems. His expertise covers device recognition failures, driver conflicts, firmware updates, and peripheral connectivity issues across all major manufacturers. Ryan's systematic approach to hardware diagnosis — starting with Device Manager, working through driver rollback and clean installs, and escalating to BIOS-level checks — has made his guides a reliable resource for both home users and field technicians. He covers GPUs, printers, audio devices, USB controllers, network adapters, and external storage.

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