Ever click an icon on your Taskbar and wish it would open the last active Window of that program? We did, so found this registry tweak that “fixes” the problem. There are loads of handy registry hacks and tweaks you can make.

In general, dll file is a Dynamic Link Library file, which means that it provides instructions to certain applications on what actions they need to execute. Additionally, these type of files often share the same components that are used for different programs and are only launched when the app needs it, saving memory space.

Open the regedit GUI at a given Key

Highlight the name of a defective DLL and press “Ctrl-C.” Click the Windows “Start” button, select “All Programs” and choose “Accessories.” Click “Start | All Programs | Accessories | Command Prompt.” Alternatively, click “Start,” type “cmd” in the Search field and press “Enter.” At this point, it’s worth trying to unregister and re-register the DLL file. This forces Windows to “forget” the DLL for a moment and re-establishes the component, which can fix the issue.

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A power cut can make part of the registry go unsaved, upsetting the hierarchical structure. More urgently, malware might have gained access to your registry.

Though less common, a potentially much worse problem is that DLLs you download from sources other than the vendor sometimes can be loaded with viruses or other malware that can infect your PC. This is particularly true on sites that aren’t too careful about where they get their files. And it’s not like those sites are going to go out of their way to tell you about their risky sources.

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System File Checker and Deployment Image Servicing and Management are two command-line utility tools that scan for the corrupt Windows files and then replace them with their working counterpart. And as of now, we would be making use of both these tools to fix the DLL issue. In the second method, we check for Windows updates to fix the missing DLL files error in Windows 11. It happens that outdated PCs have a problem with DLL files. Toggle the Real-time threat protection button to off. There are several methods for disabling msmpeng.exe.

So, as you are now familiar with the different reasons why you are getting this problem, it’s time to fix it. To scan and restore Windows system files if this common DLL error is caused due to missing system files. This page focuses on introducing what is DLL file, and how to fix missing or corrupted DLL files in best 10 ways.