O Problema:

When running the Deployment Image Servicing and Management (DISM) tool with the /Online /Cleanup-Image /RestoreHealth option on a Windows system, you encounter the error code 0x800f081f. The error message indicates that the source files could not be found, preventing the restoration of the system image.

Análise do Problema:

The error occurs during the execution of the DISM command, which is used to repair the Windows image. This command is typically run when the system files are corrupted or missing, and it attempts to restore the health of the Windows image. The error 0x800f081f specifically means that DISM was unable to locate the necessary source files to perform the repair. This issue often arises after a failed Windows update or when the system image is corrupted.

Causa Raiz:

The root cause of the 0x800f081f error is the unavailability of the source files required by DISM to repair the Windows image. This can happen if the Windows Update components are corrupted, the system cannot connect to Windows Update servers, or if the local source files are missing or damaged.

Solução:

To resolve the DISM error 0x800f081f, follow these steps:

1. Check Windows Update Settings:

• Ensure that your system can connect to Windows Update servers. Go to Settings > Update & Security > Windows Update and check for updates.

2. Specify an Alternate Source Path:

• If the system cannot access Windows Update, specify a local source path using a Windows installation media or an ISO file.


• Mount the Windows ISO file or insert the installation media.


• Note the drive letter of the mounted ISO or installation media (e.g., D:\).

3. Run DISM with Source Option:

• Open Command Prompt as Administrator.


• Execute the following command, replacing D:\ with the actual drive letter of your source:
  

   DISM /Online /Cleanup-Image /RestoreHealth /Source:D:\sources\install.wim /LimitAccess



• If install.wim is not available, you might find install.esd instead. Use the following command:
  

   DISM /Online /Cleanup-Image /RestoreHealth /Source:esd:D:\sources\install.esd:1 /LimitAccess



• The /LimitAccess option prevents DISM from contacting Windows Update.

4. Verify the Repair:

• After the command completes, check the integrity of the system files by running:
  

   sfc /scannow



• This System File Checker tool will scan and repair any remaining issues.

5. Review DISM Log File:

• If issues persist, review the DISM log file located at C:\Windows\Logs\DISM\dism.log for detailed error information.

By following these steps, you should be able to resolve the error and restore the health of your Windows image.