Further to last post, after trying the Troubleshoot Update suggestion and restarting, the update install reached 100% before crashing again. But now got slightly different error message:
2023-02 Cumulative Update for Windows 10 Version 22H2 for x64-based Systems (KB5022834) -Error 0x8007000d
Status: Some update files are missing or have problems. We'll try to download the update again later. Error code: (0x8007000d)