Laptop ignoring Windows 11 security updates

My laptop (with an Intel processor) has not recognised Windows 11 Security Updates 2026-04 and 2026-05. Each time I have got an installation failed message; when I re-try, I get the Windows up-to-date message.

My Windows update history currently shows 2026-03 as the latest security update, and the latest is Windows Malicious Software Removal Tool x64 - v5.141 (KB890830) installed this week on 13 May 26.

In contrast, my wife’s Samsung laptop (with a Snapdragon ARM 64 processor) is fully up-to-date with Security Update 2026-05 installed this week.

Should I be worried about the recent lack of Windows Security Updates?