Content Assist (Left Ctrl + Space) not working in Eclipse (Windows 8.1)

Question

I am using
Eclipse 2020-06 (4.16.0)
Operating System: Windows 8.1 Pro
English(US) styled keyboard.

Issue:

Content Assist is not working in my Eclipse when I am pressing Left Ctrl + Space. Whereas it is working with Right Ctrl + Space.

Expecting Solution

It should start working with Left Ctrl + Space

Already Tried

1. Tried Keybinding with Left Ctrl + Space but the eclipse field is not accepting it but it is accepting Right Ctrl + Space.

   Eclipse>Windows>Preferences>General>Keys

   Screenshot of the setting

2. Eclipse>Windows>Preferences>Java>Editor>Content Assist>Advance

   Screenshot of Proposal Kinds

3. Removed all languages from windows except one English (US)

   Language Setting in Windows

   Language Setting in Windows

   Language Setting in Windows

   Language Setting in Windows

Answer 1

teried Keybinding with Left Ctrl + Space but the eclipse field is not accepting it but it is accepting Right Ctrl + Space.

That is strange, maybe the left Ctrl button is not working at all? Just to rule it out, you can try opening an On-Screen keyboard (Windows key, then type on screen keyboard), click on the left CTRL button, and see that the on screen keyboard is receiving this input.