A failed update is frustrating, but the error code and a few basic checks can help narrow down the problem.
Record what failed
Open Settings > Windows Update. Write down the failed update name and any error code. Restart the PC, confirm that it has a stable connection and check available storage.
Use built-in help
Run the Windows Update troubleshooter in the Get Help app and follow its prompts. Restart if requested and retry the update once. On a managed PC, the employer may control the update schedule.
Escalate with evidence
If the update still fails, note what the troubleshooter reported and check Microsoft’s guidance for your particular error. Avoid repair downloads promoted through unknown search adverts. Back up important data before more advanced repair work.
Further reading: Microsoft Support: updating Windows.