Simple Way to Fix cmddefui.dll Error
I need to install a software on my PC, what is annoying is that: I come across the error message "This application failed to start because cmddefui.dll was not found. Re-installing the application may fix this problem." Some friends told me to download a new cmddefui.dll files. Nothing happened. I don't know if I have done the right thing. How should I do? Thank you so much!
The answer is absolutely yes. It is possible to fix cmddefui.dll if you have tried the below method.
What is cmddefui.dll File?
Common cmddefui.dll Problems You May Encounter:
- "Cannot find [PATH]\cmddefui.dll"
- "Cannot start [APPLICATION]. A required component is missing: cmddefui.dll. Please install [APPLICATION] again."
- "The file cmddefui.dll is missing."
- "cmddefui.dll Not Found"
- "This application failed to start because cmddefui.dll was not found. Re-installing the application may fix this problem."
Method One: Fix cmddefui.dll Error with a Useful Software Automatically!
Step One: Free Download SmartPCFixer!Step Two: Run this tool and click "System Fix", then choose "Dll Download".
Step Three: Type your missing cmddefui.dll files and click "Search", Then download the files and use SmartPCFixer to register it for you.
Is SmartPCFixer really Safe?
SmartPCFixer™ is a top-ranking error-resolution registry cleaner which will fix the computer errors and optimize the system settings. You can scan, clean, optimize, and keep your PC much healthier with it ! It will help identify and fix Windows' invalid registry entries. By running Scan & Cleaner as part of scheduled maintenance, it will keep your PC from freezing or frequent crashes . Using it will reduce the probability of you getting a "blue screen", program not responding or lock up.
Method Two: Resolve cmddefui.dll Issues Manually!
Step One: Download cmddefui.dll Files from SmartPCFixer.Step Two: Extract the downloaded file to the program folder that the cmddefui.dll file is corrupted. Restart your computer and see if the problem is removed
Step Three: If the cmddefui.dll missing error still persists, you had better run a SFC for your system Most often, SFC is able to chect out the corrupted cmddefui.dll system files for you, and troubleshoot it with ease.
Run SFC for Your PC First:
System File Checker is a utility in Windows which allows users to scan for corruptions in Windows system files and restore corrupted files. If a Windows Resource Protection (WRP) file is missing or is corrupted, Windows may not behave as expected. For example, some Windows functions may not work, or Windows may crash.
Following the below steps and fix corrupted files by yourself: (Windows 7 or Windows Vista)
1. To do this, click Start, type Command Prompt or cmd in the Search box, right-click Command Prompt, and then click Run as administrator. If you are prompted for an administrator password or for a confirmation, type the password, or click Allow.
2. At the command prompt, type the following command, and then press ENTER:
sfc /scannow
3. You may see the following message.
- Windows Resource Protection did not find any integrity violations. (This means that you do not have any missing or corrupted system files.)
- Windows Resource Protection could not perform the requested operation.
- Windows Resource Protection found corrupt files and successfully repaired them.
- Windows Resource Protection found corrupt files but was unable to fix some of them. (To repair the corrupted files manually, view details of the System File Checker process to find the corrupted file, and then manually replace the corrupted file with a known good copy of the file.)
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