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Windows DISM Errors — Deployment Image Servicing Troubleshooting

Errorsystem

Overview

Guide to fixing DISM errors including Error 87, Error 1726, Error 0x800f081f, and 'The source files could not be found' in Windows image repair.

Key Details

  • DISM (Deployment Image Servicing and Management) repairs the Windows component store
  • Error 87: invalid command-line parameter syntax
  • Error 0x800f081f: source files could not be found or downloaded
  • Error 1726: the remote procedure call failed — indicates service issue
  • DISM downloads repair files from Windows Update by default

Common Causes

  • Incorrect DISM command syntax (Error 87) — typos or wrong switches
  • Windows Update connection blocked by firewall or proxy (Error 0x800f081f)
  • Corrupted Windows Update components preventing download
  • DISM service crash during operation (Error 1726)
  • Missing or damaged Windows installation media when using /Source switch

Steps

  1. 1For Error 87: verify exact syntax — DISM /Online /Cleanup-Image /RestoreHealth (note the forward slashes)
  2. 2For Error 0x800f081f: mount Windows ISO and use /Source:D:\sources\install.wim
  3. 3Reset Windows Update components: net stop wuauserv && ren C:\Windows\SoftwareDistribution SoftwareDistribution.old && net start wuauserv
  4. 4For Error 1726: restart the Windows Modules Installer service (TrustedInstaller)
  5. 5Run DISM from Windows PE if online repair consistently fails

Tags

windowsdismimage-repaircomponent-storetroubleshooting

More in System

windows-C000021A-status-system-process-terminatedWindows Error 0xC000021A — STATUS SYSTEM PROCESS TERMINATED
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windows-C0000225-boot-configuration-errorWindows Error 0xC0000225 — Boot Configuration Error
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windows-C000000F-boot-selection-failedWindows Error 0xC000000F — Boot Selection Failed
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windows-80004005-unspecified-errorWindows Error 0x80004005 — Unspecified Error
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windows-80070570-file-or-directory-corruptedWindows Error 0x80070570 — File or Directory Corrupted
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windows-system-0xc0000185Windows Error 0xC0000185 — Boot Device Inaccessible
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Frequently Asked Questions

DISM repairs the Windows component store (the source files). SFC uses the component store to repair individual system files. DISM fixes the source, SFC fixes the files.