Windows 10: left ctrl + space not registering

my space key now does not register when I press left control. Not a hardware issue, as I checked multiple keyboards. only happens on left ctrl + space. powertools are not installed.

:)

 

Greenshot: The hotkey(s) "PrintScreen, Alt + PrintScreen, Ctrl + PrintScreen, ..." could not be registered

Adding on top of @userJT's solution -

Initially, Greenshot complained about "PrintScreen" and "Ctrl + PrintScreen" for me. It appears that "PrintScreen" was taken by OneDrive and "Ctrl + PrintScreen" - by DropBox. After you disable both, problem goes away.

Full list of steps -

1. See the error message like in the question. Panic, google, get to this page
   
2. Note the first key that Greenshot complains about.
   
   • In most of the cases it will be "PrintScreen", so let's take it as an example.
     
3. Press "PrintScreen" on your keyboard.
   
4. OneDrive will pop up, prompting to save screenshots to OneDrive. Choose "No, Thanks" there.
   
5. Click "Retry" in Greenshot's dialog, note the keys that are still taken.
   
6. Repeat steps above for keys that Greenshot cannot register until it succeeds.
   
   • In my case it was "Ctrl + PrintScreen" that was taken by DropBox.
     
7. Enjoy shortcuts in Greenshot
   

HTH.

 

Switch virtual desktop: WIN + CTRL + LEFT or RIGHT

• 
  
  I found a bug on the newly released Windows 10 on the Samsung Ativ book 9+ (I'm not sure if this bug is found on other laptops). The function, "Switch virtual desktop: WIN + CTRL + LEFT or RIGHT," doesn't work with the ctrl button on the right side
  of the keyboard. However, it works when the ctrl button on the left side is used instead. I'm wondering if other users are facing the same problem.
  

 

Left click not registering

I suggest you start the trouble-shooting effort with simple left-click actions, e.g. like so:

• Single click any desktop item. This should highlight the item.
• Double-click any desktop item. This should open it.
• Drag any desktop item do a different place, using your mouse. Can you move it?

Could it be that your mouse buttons are reversed?