Troubleshooting
Use DISM to Repair the Windows 8 or 8.1 Component Store (Historical)
Check and repair Windows 8/8.1 component-store corruption with DISM, then run System File Checker to repair protected system files.
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dism.exe
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Troubleshooting
Fix: Windows Update Fails or Hangs in Windows 8 (Historical)
Historical Windows 8 troubleshooting for Windows Update failures, using restart, built-in troubleshooting, DISM, SFC, and clean-boot checks without unsafe blanket driver or antivirus changes.