After going back to Windows 7, the language bar is missing in the taskbar even if my keyboard setup looks good in Regional and Language.

I upgraded from Windows 7 to Windows 10 in my acer laptop. It is really slow and showed the error of DPC_WATCHDOG_VIOLATION  all the time.

After going back to Windows 7 , I could not switch to Chinese language via Ctrl+ Space. The language bar was missing in the taskbar even if my keyboard setup looked good in Regional and Language. Thats really a nasty bug. I need to add something in the registry key and make it work. Not user friendly. :)

July 31st, 2015 5:35pm

could not switch to Chinese language via Ctrl+ Space.

That sounds like a custom shortcut.  So have you tried re-establishing it?  Did you have to do "something in the registry key" originally to set that?  Also, I can't remember how W7 showed and accessed the Language bar but if I recall correctly it was significantly different starting in W8.  E.g. there Win+Spacebar is used to get keyboard focus and switch between items in its Language bar.  W7 even has an undocked Language bar so it can be quite different and therefore less of a surprise if converting it back might not be complete.  That would be assuming that "converting it back" would be necessary because I would have thought that an image restore would be a more likely implementation for that function.  And in that case the cause of your problem could be some W7 functionality instead of W10.
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July 31st, 2015 9:28pm

Before Windows 8, the language bar is always using Ctrl+Space to switch the language, but in Windows 8 , it is changed into Win+ Space. I believe it is the downgrade bug.

August 1st, 2015 1:50am

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