My <clock> section of XML is as follows:     <clock offset='localtime'>     <timer name='hypervclock'/>     <timer name='hpet' present='no'/>   </clock>   Also, are you using latest nVIDIA drivers or 340.52?  The 340.52 drivers were the last drivers nVIDIA released that supported the use of hyper-v extensions in the VM.  If you use 340.52, you can add this in your <features> section:     <features>     <acpi/>     <apic/>     &