[recursive]

Alt-Tab isn't broken for everyone. It's working on all three of the windows machines I regularly use.

[dboreham]

Alt-tab is working for me. Meanwhile, the bug first seen in prerelease versions of the new shell on NT3.51 in 1995, where the taskbar won't hide, is still present in the latest Win10 insider preview.

[vntok]

Sounds like a feature, not a bug!