VirtualBox 4.3.12, Windows 7 as guest and host OS: host -> guest clipboard not working

I use VirtualBox 4.3.12 r93733.

• Guest OS: Windows 7 SP1 x64 Ultimate
• Host OS: Windows 7 SP1 x64 Ultimate

I installed the VirtualBox Guest Additions and rebooted the guest OS. The host -> guest clipboard is not working, is there any way to fix this issue? Host -> guest clipboard means that I copy something in their keyboard in the host OS and try to paste it in the guest OS.

The guest -> host clipboard works fine. I set the clipboard to be bidirectional:

The VirtualBox Guest Additions are running fine on the guest OS:

I restarted VBoxTray.exe but it didn't help. I also try giving administrative permission to this process.

Before upgrading VirtualBox (I believe I had 4.3.6) the bidirectional clipboard was working fine.

you need to do one step more, when you start your window 7, you will see menus at top.

click on Devices -> shared Clipboard -> Bidirectional

now you can copy and paste from host to guest or gues to host