Windows & BSOD · high

How to fix0x800f0922

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

What this error means

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.

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
01Check and increase the size of the System Reserved Partition using a partition manager.

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

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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02Temporarily disable Secure Boot in UEFI settings to allow update completion.

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

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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03Verify and repair network settings, ensuring no custom proxies block the update.

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

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

  • 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.