The installation fails because Windows Update is not working properly.
The installation fails because Windows Update is not working properly.
Restart Windows and try a new setup. Windows 10 often resists many updates on older versions.
What kind of change is this? A new feature release such as 20H2 or 21H1? Or is it a general update for one of the Windows 10 releases? If you're using a fairly recent version, the update might have been removed because of a problem and could disappear or install once the issue is resolved. For feature updates, it's usually safer to reinstall Windows. Unless you're moving from 20H2 to 21H1, as 21H1 is still new and may cause installation problems, but if your system is older than 2004, reinstalling is likely the best option since those updates often fail in older versions.
Windows 10 version 1903 was released roughly two years ago. For optimal performance, it's recommended to reinstall using the latest version, which is 21H1. At my workplace, we upgraded several laptops from version 1809 to 1909 (the latter came out after 1903), and it caused significant issues—computers became extremely slow and often became unusable, forcing most to reinstall Windows anyway. Based on this experience, you should follow a similar path with your system.