Windows Update Error 0x800f0922 (Secure Boot / Space Issue)

What is 0x800f0922?

Windows Update Error 0x800f0922 (Secure Boot / Space Issue) ranks as a high-severity Windows operating system issue in our database. This error is triggered when Windows Update fails to install due to a secure boot configuration mismatch, insufficient system reserved partition space, or a connection failure to Microsoft servers. See the troubleshooting steps below for the fix.

Common Causes

• Insufficient space in the System Reserved Partition (SRP).
• Secure Boot is enabled in UEFI but the update's boot files cannot verify signatures.
• Proxy/VPN connection blocking access to Microsoft's validation servers.

Step-by-Step Fix Guide

• 1
  Check and increase the size of the System Reserved Partition using a partition manager.

  If earlier steps didn't help, "Check and increase the size of the System Reserved Partition using a partition manager." directly addresses insufficient space in the System Reserved Partition (SRP).

• 2
  Temporarily disable Secure Boot in UEFI settings to allow update completion.

  "Temporarily disable Secure Boot in UEFI settings to allow update completion." targets secure Boot is enabled in UEFI but the update's boot files cannot verify signatures, one of the documented causes of 0x800f0922.

• 3
  Verify and repair network settings, ensuring no custom proxies block the update.

  If earlier steps didn't help, "Verify and repair network settings, ensuring no custom proxies block the update." directly addresses secure Boot is enabled in UEFI but the update's boot files cannot verify signatures.

Commands & Diagnostics

Frequently Asked Questions