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hi am not able to copy from my host to my vm or from vm to host using linux ubuntu

I assume there's a question in there, but with zero info I'm not going to bother trying to work it out. If you want help it's up to you to put some thought into asking a clear question and providing proper diagnostic info.

am not able to copy from vm to my window host

Start the VM from full normal shutdown, not save-state. Run until you see the problem happen, then shut down the VM from within the VM's OS if possible. If not possible, close the Virtualbox window for the VM with the Power Off option set.

Right-click the VM in the main Virtualbox window's VM list, choose Show Log. Save the far left tab's log, zip it, and post the zip file, using the forum's Upload Attachment tab.

Copy and paste requires an intermediate clipboard, a feature of GUIs. If you are not running a GUI, or if you don't have the Guest Additions installed, then there cannot be a shared clipboard.

It also requires the software you are using to recognize the clipboard as a source/dest for input. On some of my Linux installs the terminal doesn't support that (I don't have details to hand, I think it was "Raspberry Pi OS", a Debian based distro).

i have run guest

check the log

Guest Additions is out of date:

00:00:02.810255 VirtualBox VM 6.1.8 r137981 win.amd64 (May 14 2020 20:30:31) release log
00:00:24.289835 VMMDev: Guest Additions information report: Version 6.0.0 r127566 '6.0.0'

See the prerequisites https://www.virtualbox.org/manual/ch02. ... nux-prereq and the install instructions https://www.virtualbox.org/manual/ch04. ... ions-linux