[Windows Server 2012 R2] Configure Remote Access to Hyper-V with Multiple Session per User

It is possible to configure same user to have different session when remote access to the same server in Hyper-V. This is of course can be done on a real physical server, but it is advisable to try it out in Hyper-V before messing up the physical server.

Before proceed, ensure that your Hyper-V have network connection and have enabled remote access. Enable Remote Access : http://jaryl-lan.blogspot.com/2014/07/windows-server-2012-r2-enable-disable.html
Enable Internet Access : http://jaryl-lan.blogspot.com/2014/07/configure-internet-access-for-hyper-v.html

To enable multiple session per user.
1) In your Hyper-V Server, open up registry editor.

2) Navigate to the following, HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\TerminalServer.

  
3) Look for fSingleSessionPerUser. If it does not exist, create DWORD with the name fSingleSessionPerUser.

4) Right click on fSingleSessionPerUser and click modify.

5) Set the value to 0 and click OK. It will then enable same user to have different session.

6) If you want to revert back the setting for each user to have only one session, then just change the value to 1.

For more detail can be found here http://remotedesktoprdp.com/force-single-session-allow-multiple-sessions-per-user

After you have done configure. You can then open up 2 remote desktop window accessing to the same Hyper-V Server with the same user.

If you have previously remote access but did not log off the user session. The next time when you remote access with the same user, a Windows sign-in window will prompt to choose which session to access.

In the task manager under Users tab, you can see the number of user's session that have previously log on without logging off and its current status.