Windows & BSOD · medium

How to fixWU-0x80070bc2

Windows Update Error 0x80070bc2

What this error means

WU-0x80070bc2 shows up as a medium-severity Windows operating system fault. A system restart is required to complete the installation of the update. The update installation enters a loop where it continually requests a reboot without completing. It sometimes comes down to pending file rename operations in the registry are locked or stuck. The steps below are ordered to resolve this efficiently.

Before you begin

Save open work and back up important files. Note any recent driver or hardware changes. If Windows cannot start, use the startup guide first.

Work through these checks

0 of 3 complete
01Force a reset of the Windows Update service configuration registry keys.

Force a reset of the Windows Update service configuration registry keys..

Use the instructions for your exact device and operating system. Check the manufacturer’s documentation before changing firmware, hardware, or system settings.

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02Clear the pending XML update transactions using Command Prompt commands.

Clear the pending XML update transactions using Command Prompt commands..

Use the instructions for your exact device and operating system. Check the manufacturer’s documentation before changing firmware, hardware, or system settings.

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03Temporarily disable third-party antivirus software during the reboot sequence.

Temporarily disable third-party antivirus software during the reboot sequence..

Use the instructions for your exact device and operating system. Check the manufacturer’s documentation before changing firmware, hardware, or system settings.

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Possible causes

  • Pending file rename operations in the registry are locked or stuck.
  • Windows Update services failing to update the installation status flag after a reboot.
  • Conflict with third-party security software locking system boot configuration files.