Event ID - 48

Event Id48
SourceMicrosoft-Windows-Hyper-V-Hypervisor
DescriptionHyper-V launch failed; Processor %1 does not provide the features necessary to run Hyper-V (leaf %2, register %3: features needed %4, features supported %5).
Event InformationAccording to Microsoft :
Cause
This event is logged when Hyper-V launch failed; Processor does not provide the features necessary to run Hyper-V.
Resolution
Check BIOS settings
Contact your hardware supplier for an updated BIOS.
Hyper-V requires hardware support, including: an x64 CPU; VT (Intel) or AMD-V (AMD) hardware extensions; No eXecute (NX)/eXecute Disable (XD) and full BIOS support for hardware virtualization. Check your physical computer's BIOS settings to ensure that virtualization features are enabled, then turn off the power to your physical computer. Restart the physical computer. NOTE: Restarting the physical computer is not sufficient.
You can use the Virtualization Detect (DetectVp.EXE) tool to check if the physical computer meets the requirements for Microsoft Virtualization Software. This test checks virtualization support for both Intel and AMD processors.
Verify
Hypervisor successfully starts.
Reference LinksEvent ID 48 from Source Microsoft-Windows-Hyper-V-Hypervisor

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