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I cannot able to use Left Ctrl+Space keyboard shortcut combination anywhere, but Right Ctrl+Space works fine.

I am using Asus ROG GL552VW, windows 10 Home Single Language Version 10.0.18363.

  1. In eclipse and microsoft vscode tools, this shortcut combo is for content assist. Left Ctrl+Space is not working but Right Ctrl+Space works.

  2. In windows file explorer also, it behaves the same way, Left Ctrl+Space is not working but Left Ctrl+Space works.

Left Ctrl+C, Left Ctrl+V and all the other shortcuts works fine.

I tried many things including uninstalling keyboard drivers. But nothing works also I cannot pin point the root cause for this.

Please provide some suggestions to overcome this annoying problem.

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  • Does this happen when booting in Safe mode?
    – harrymc
    Commented Jun 13, 2020 at 19:58
  • Let me confirm on this
    – karthik
    Commented Jun 13, 2020 at 20:05
  • Yes @harrymc the same problem present in safe mode also
    – karthik
    Commented Jun 13, 2020 at 20:10
  • 1
    What do you expect Left-Ctrl+Space to do?
    – harrymc
    Commented Jun 14, 2020 at 13:32
  • The same thing which right ctrl+ space does for eg. From file explorer, Multiple selection of random files in a folder
    – karthik
    Commented Jun 14, 2020 at 14:17

1 Answer 1

Reset to default
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If you're using 'PowerToys', the Ctrl + Space was assigned to its 'Peek' feature by default and overrides others. You just need to disable it!

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  • Absolutely amazing, this has been bugging me for a few days now and I found the answer 19 minutes after you posted it!
    – Thomas Nairn
    Commented May 25, 2023 at 9:47
  • 1
    This helped me was searching on google and came across this post, yes, I am using Power Toys and didn't notice that the shortcut CTRL + SPACE was assigned to Peek Feature, on disabling the feature I am able to use it in Excel. Thanks to both the Original Poster and the Solver
    – Mayukh Bhattacharya
    Commented May 26, 2023 at 0:49
  • Thank you so much for the answer! I was going to buy a new keyboard until I saw this
    – Posandu
    Commented May 31, 2023 at 16:09
  • Glad you posted about PowerToys and it helped others. For my case, I had to replace the keyboard, Things worked post to it.
    – karthik
    Commented Jun 16, 2023 at 8:49
  • I too want to thank you for this answer
    – yellowblood
    Commented Sep 17, 2023 at 21:52

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