As ZDNet reports, some Windows 10 users have found themselves in possession of a continually rebooting computer after their PC downloaded a buggy cumulative update from Microsoft.
The problem appears to be in KB3081424, a cumulative update from Microsoft that was supposed to "enhance the functionality of Windows 10", and patch a number of issues.
Irony of ironies, the patch is causing - for some at least - more serious problems than it appears to have been designed to resolve, with users thrown into an endless loop of crash, reboot, crash...
According to reports, some users have described that a quick fiddle in their Registry settings has resolved the issue, and allowed the update to install properly. However, that isn't a solution that many users will feel comfortable with - and it may be wiser to hold off until Microsoft fixes the problem properly.
Of course, the problem is compounded by Microsoft's insistence on making updates mandatory for home users, with no option to opt-out or wait and see whether they cause problems for others...
Don't forget - there's a reason why businesses don't automatically roll out updates to thousands of computers, but instead take a softly-softly approach.
Large organisations are worried that a bad update might bork their network and stop users from being able to get on with their work, so they prefer to test updates on a small number of computers first, or wait a few days to see what other users report.
Microsoft had a noble aim with making security updates mandatory for home users of Windows, but there is always the danger that a buggy update will end up causing more problems than it aimed to fix.
And that's why it's right to give even home users an opt-out.