It's a 2012R2 server with win7 pooled virtual desktops. Disk usage of these desktops is somewhy high. They'd used all space at the volume and lost profile disks. After reboot and incrising that volume i've found that the vms where not rebooted but "saved". Users even said there were no reboot. After relogin they managed to work again except one.
I've restarted his vm in collection manualy but server manager still shows the session of this user. I can't disconnect it getting erros "Unable to disconnect session 147 on host.domain. WTS API failed". PS commands return errors too. Can i disconnect this session somehow or reboot of the server is the only option?