[WORKAROUND]

Windows Update

May 2026 security update (KB5089549) fails to install on Windows 11 24H2 with error 0x800f0922 due to insufficient free space on EFI System Partition (ESP).

first seen 5/15/2026 · last seen 5/15/2026 · 4 reports · 3 admins

source_posts

*May 2026 security update might fail to install with error 0x800f0922
mshealth:status-windows-11-24h2 · 0 pts · 0 comments
*May 2026 security update might fail to install with error 0x800f0922
mshealth:status-windows-11-25h2 · 0 pts · 0 comments
*KB5089549 causing legacy/niche driver issues - Whats your workaround?
r/msp · 5 pts · 5 comments
*Microsoft confirms Windows 11 security update install issues
Bleeping Computer · 0 pts · 0 comments