I'm using VirtualBox Version 5.2.6 r120293 (Qt5.6.1).
Guest OS: Windows 7 Ultimate (32-bit)
Host OS: CentOS 7
I tried enabling bidirectional clipboard by going to Settings -> General -> Advanced and selecting Bidirectional form the dropdown menu for shared clipboard.
Then I restarted the machine. But it wasn't working.
I have already tried removing and adding the VM to the machine list. But the problem persists.
Any help would be appreciated.