Winmmbase.dll Error – How to Fix the Error on Windows 10/11?

Winmmbase.dll Error

DLL files are very important components in Windows operations. Many programs and system services rely on the well-functioning DLL files. That’s why your system or programs will malfunction once you encounter the DLL errors, while the winmmbase.dll error is one of them.

When you run into the winmmbase.dll crashing issue, you will receive a message that simply reads:

C:/WINDOWS/SYSTEM32/ winmmbase.dll is either not designed to run on Windows or it contains an error

This winmmbase.dll error may be triggered by corrupt system files, a virus or malware infection, issues with the storage drive, etc. To fix these issues, you can do as follows.

How to Fix the “DLL Not Designed to Run on Windows” Issue?

How to fix the “DLL not designed to run on Windows” error? Why does this error happen? To fix these issues, you can read this post.

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Suggestion:

DLL errors can easily lead to system or program crashes and your data can get lost in the process, especially for the winmmbase.dll file, which is closely related to the default Windows installation.

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For that, MiniTool ShadowMaker free can satisfy your demands. It provides you with a one-click system backup solution and files & folders and partitions & disks are also available for you to back up. Besides, MiniTool allows you to clone SSD to larger SSD.

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How to Fix the Winmmbase.dll Error?

Fix 1: Replace the DLL File

The first step to cope with the winmmbase.dll missing or not found error is to replace the damaged DLL file. The DDL file is located in C:\WINDOWS\System32 and if you can’t find this related file, you need to go to another well-functioning Windows system with the same architecture (32-bit or 64-bit).

Then you can copy the winmmbase.dll from that in a flash drive and paste it to the System32 folder in the affected computer.

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Fix 2: Use SFC and DISM Scans

Run SFC and DISM scans to check and repair corrupted system files. Then you can restart your computer to see if the error can be fixed.

Step 1: Open Run by pressing Win + R, type cmd, and press Ctrl + Shift + Enter simultaneously.

Step 2: Copy and paste this command and press Enter to execute it.

sfc /scannow

Wait for a while until the scan finishes and you can proceed to execute the next command – DISM /Online /Cleanup-Image /RestoreHealth.

When it shows you the result, you can restart your computer to check the error.

Fix 3: Reinstall the Affected Application

If you encounter this error when you attempt to access some dedicated program, you can uninstall and then reinstall this program via the following steps.

Step 1: Open Settings by pressing Win + I and click Apps > Apps & features.

Step 2: Scroll down to locate and click on the program and choose Uninstall > Uninstall.

Then you can download and install the program from the official source.

Fix 4: Perform an In-Place Upgrade

The last method is to perform an in-place upgrade. There are many options for Windows updates and you can go to Settings > Update & Security > Windows Update > Check for updates.

Since the winmmbase.dll error is related to the Windows installation, it may fail to perform and you can try to perform an in-place upgrade here. For detailed steps, you can refer to these two articles:

• Windows 10 In-Place Upgrade: a Step-by-Step Guide
• How to Perform a Windows 11 In-Place Upgrade?

Bottom Line:

This post has clarified how to fix the winmmbase.dll error and for other related DLL errors, you can look through the MiniTool Website.