How to fix
Oleaut32.dll could not be opened error
on Windows

Hello. When I try to install a program on Windows I get the "Oleaut32.dll could not be opened" error. Any way to fix this?

A lot of users have reported seeing the "Oleaut32.dll could not be opened" error on Windows, which frequently appears just after trying to install a certain program. This specific error, which appears when installation files are being executed, points to a serious problem with the Oleaut32.dll file.

This error is frequently encountered by users due to system and program incompatibilities. This discrepancy may arise due to the software being designed for a different Windows version or architecture. On the other hand, the issue can mean that you don't have enough user privileges to start the installation.

Oleaut32.dll errors can have serious repercussions for users since they prevent desired programs from being installed. The fact that this problem frequently arises as users are starting the installation procedure adds to their irritation. This disruption potentially makes it more difficult for users to obtain the required software in addition to negatively impacting their experience.

Moreover, users can start to doubt the reliability and compatibility of their systems due to the error's unclear nature. Users trying to install new apps or software updates may feel irritated and inconvenienced due to the confusion surrounding the source of the Oleaut32.dll error.

Resolving the Oleaut32.dll issue involves addressing the root causes - either the application's compatibility with the system or the user's installation privileges. Changing compatibility settings or making sure the user has proper permission to carry out the installation are two possible fixes.

In this guide, you will find 2 steps that should help you fix Oleaut32.dll could not be opened error in Windows. You can also run a system repair tool like [d1] that can fix most system errors, BSODs,[ref en-1] corrupted files, and registry[ref en-2] issues. Otherwise, follow the step-by-step instructions below.

Solution 1. Verify Troubleshoot Compatibility

• Press the Windows key and search for oleaut32.
• Right-click on the file and select Open file location.
• Navigate to the following folder: C:WindowsSystem32.
• Right-click on the installation shortcut and choose Properties.
• This action opens the Properties window.
• In the Properties window, click on the Compatibility tab.
• To automatically troubleshoot program compatibility, select Run compatibility troubleshooter and allow Windows to analyze the issue.

• After a few seconds, the system will suggest settings to resolve the oleaut32.dll could not be opened problem.
• Click Try recommended settings.
• On the next screen, click Test the program to check if the application still displays the oleaut32.dll could not be opened error.
• If oleaut32.dll still crashes, proceed to troubleshoot it manually.

Solution 2. Troubleshoot Compatibility Manually

• Press the Windows key and search for oleaut32.
• Right-click on the file and choose Open file location.
• Locate the file in the folder: C:WindowsSystem32.
• Right-click on the executable file and opt for Properties.
• In the Properties window, go to the Compatibility tab.
• On the Compatibility tab, tick the box next to Run this program in compatibility mode for.

• If the program ran correctly on an earlier Windows version, choose it from the dropdown menu below Run this program in compatibility mode for: and click Apply.
• If not, select Windows 8 and hit Apply.
• Run the program. If the oleaut32.dll could not be opened error persists, return to Step 5 and choose a different Windows version.
• Repeat until the application runs without errors.