How to copy .VDI image Thursday, Jul 22 2010 

The following steps show you how to make a copy of virtual box hard disk:

  1. Shut down the virtual machine you would like to copy.
  2. From File -> Virtual Media Manager…, select the virtual machine you would like to copy and click “Release” from the Action toolbar.
  3. It will ask you to confirm release. Click “Release” to release it.
  4. In your command prompt, run the following command to set the new UUID for the newly created hard disk.C:\Users\Public\VirtualBox>”C:\Program Files\Oracle\VirtualBox\VBoxManage.exe” internalcommands sethduuid “Windows XP Professional – Clean.vdi”

    Click the below image to see the screenshot:

  5. In the File -> Virtual Media Manager…, add the new image you have created in step 4.
  6. Press the New button to create a new virtual machine and link to the one created in step 4.

Concurrent Remote Users in Windows 7 Professional 64 bit Thursday, Jul 22 2010 

  1. Download appropriate files from
  2. Extract the files from the zip folder.
  3. Back up your termsrv.dll under C:\Windows\System32.
  4. Right click install.cmd and select “Run as Administrator” from the extracted folder.
  5. Boom.. login to your computer locally using one user and remote desktop to same computer using another user.