Microsoft mops up after Patch Tuesday broke logins, audio, Excel

Microsoft fixed hundreds of security flaws in its September Patch Tuesday software updates — but it also introduced some annoying bugs. Now it has fixed some of them with a series of out-of-band updates. Excel 2016 users were among the victims, as Patch Tuesday update caused certain paste operations to fail. A hotfix in update 5002665 partly fixes the problem, but if operations still fail then users will have to resort to using Excel’s “Paste special” command instead. Users of Remote Desktop Services had found some instability in the application where RDP connections failed or where servers were left hanging at “Please wait for the Remote Desktop Configuration”. The issue was resolved with update KB5129194. Another issue that users were facing after the update was a problem with some Credential Guard-protected machine accounts. Some users discovered that they had lost some security within Active Directory which meant that some devices were not recognized. The solution involves temporarily preventing Machine Identity Isolation enforcement before installing a fix. Microsoft said that it would be introducing a permanent solution in a future update. Another issue raised by the Septemb…

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