Microsoft’s first update to Windows 10 is bricking some users’ PCs.

The cumulative update is rebooting after getting part way through the installation process on x64-based systems without completing set up. The update is KB3081424.

The problem has been reported, here, on Microsoft's official forums. In the case of one user, the problem has felled a PC that’s joined to a domain.

User BrettDM wrote:

Downloads, reboot to install. Gets to 30% and reboots. Gets yo [sic] 59% and reboots. Gets to 59% again and then states something went wrong so uninstalling the update. Wait a few minutes and reboot. Back to login screen This happens without fail, every single time.

Domain-attached PCs running Windows 7 were, it emerged last week, being stuffed unwillingly with Windows 10 updates.

That was contrary to what Microsoft said would happen, here. The firm has so far failed to provide a credible explanation for what exactly has gone wrong.

Those suffering from the latest problem reported that the Windows 10 infinite crash loop was stopped by removing security identifiers for users that no longer existed in the Windows registry.

The fix, however, hasn’t worked for all.

It’s the second update glitch to hit Window 10: update KB3074681 came days before the big launch and crashed file explorer while there were also problems with Nvidia drivers. ®