I'm running Ubuntu on VirtualBox on a Windows host. Despite setting up everything I could think of, the clipboard functionality refuses to cooperate. Here’s a breakdown of my situation and the steps I’ve tried so far.

What’s Set Up:

Guest Additions Installed:
The vbox_GAs_6.1.36 icon appears correctly, and shared folders between the VirtualBox guest and the Windows host work without a hitch.
Extension Pack Installed:
I’ve installed Oracle_VM_VirtualBox_Extension_Pack.vbox-extpack-6.1.36a.
Clipboard Settings:
Clipboard sharing is set to Bidirectional under the Devices menu.
Drag and Drop:
Set to Bidirectional as well, but it doesn’t work either.

The Problem:

Copying text from Google Chrome on the host and pasting it into Firefox within the VirtualBox guest doesn’t work.
Copying text from Notepad on the host and pasting it into LibreOffice Writer on the guest also fails.

What I’ve Tried:

I’ve double-checked all settings and even reinstalled Guest Additions, but the clipboard issue persists.

Possible Solution:

If you’re facing a similar problem, the following commands might resolve it:

Update and Install Necessary Packages
Run the following commands in your Ubuntu terminal:

sudo apt-get update
sudo apt-get install virtualbox-guest-x11
sudo apt install linux-headers-$(uname -r) build-essential dkms

Enable Clipboard Support
Once the above packages are installed, run:
```
sudo VBoxClient --clipboard
```
Then, restart your virtual machine, after restarting the VM if it still does not work do the same command again and it will work inshallah:

These steps should enable clipboard functionality. If it still doesn’t work, double-check that the Guest Additions installation was successful and matches your VirtualBox version.

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