Fixes for SFC.DLL Is Either Not Designed to Run on Windows

Encountering the error "SFC.DLL is either not designed to run on Windows"? This guide provides solutions to resolve this frustrating issue, which often appears after startup or when launching specific programs.

Quick Navigation:

• Understanding the "SFC.DLL" Error
• Solution 1: System File Checker (SFC) and Deployment Image Servicing and Management (DISM)
• Solution 2: Safe Mode Boot
• Solution 3: Malware Scan
• Solution 4: System Restore
• Solution 5: Windows Update
• Conclusion

Understanding the "SFC.DLL" Error

The error message typically indicates a corrupted system file (SFC.DLL) or incompatibility with your operating system. Potential causes include:

• File Corruption: The SFC.DLL file might be damaged due to an update or installation process.
• Missing System Files: Essential system files could be missing or incorrectly replaced.
• Application Incompatibility: A program may be using an incompatible version of the DLL file.
• Malware Infection: A virus or malware could have altered the SFC.DLL file.

Solution 1: System File Checker (SFC) and DISM

Corrupted system files are a common culprit. SFC and DISM tools can help repair these issues. SFC scans and replaces damaged files, while DISM repairs problems within the system image.

1. Search for "Command Prompt," right-click, and select "Run as administrator."
2. Confirm the User Account Control (UAC) prompt.
3. Type DISM.exe /Online /Cleanup-Image /Restorehealth and press Enter.
4. Once complete, type sfc /scannow and press Enter.

Solution 2: Safe Mode Boot

Safe Mode starts Windows with minimal drivers and services, helping isolate problematic software.

1. Press Win R to open the Run dialog.
2. Type msconfig and press Enter.
3. Go to the Services tab, check "Hide all Microsoft services," and select "Disable all."
4. Go to the Startup tab, click "Open Task Manager," disable all startup items, and close Task Manager.
5. On the Boot tab, select "Safe boot," then restart your computer.
6. After restarting, re-enable disabled items one by one to identify the source of the conflict.

Solution 3: Malware Scan

Malware can corrupt system files. A thorough scan is crucial.

1. Right-click the Start button and open the Settings app.
2. Go to Update & Security > Windows Security.
3. Under Protection areas, select Virus & threat protection.
4. Click Scan options and choose a scan method.

Solution 4: System Restore

System Restore reverts your system to a previous stable point, undoing recent changes that might have caused the error. Your personal files will remain unaffected.

1. Search for "Create a restore point" and press Enter.
2. Click System Restore, then Next.
3. Select a restore point from before the error occurred, click Next, then Finish.

Solution 5: Windows Update

Outdated Windows can have vulnerabilities. Updating ensures you have the latest patches and improvements.

1. Press Win I to open the Settings app.
2. Go to Update & Security > Windows Update.
3. Click Check for updates.
4. Install any available updates.

Conclusion

These solutions offer various approaches to resolving the "SFC.DLL is either not designed to run on Windows" error. Try these methods sequentially; one should hopefully resolve the issue. If data loss has occurred, consider using data recovery software to retrieve your files.

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