Virtualbox is slow

  • Reference: https://forums.virtualbox.org/viewtopic.php?t=110953&start=15
To Disable VBS

Step 1
Use Group Policy Editor (gpedit.exe) to completely disable VBS
Computer Configuration > Administrative Templates > System > Device Guard > Turn On Virtualization Based Security - Set to Disable
[Not configure]

Step 2
Open a Command Prompt using Run as Administrator and run the following commands:
1. bcdedit /set hypervisorlaunchtype off
2. bcdedit /set vsmlaunchtype Off
3. DISM /Online /Disable-Feature /FeatureName:Microsoft-Hyper-V

Step 3
Set CredentialGuard Enable DWORD bit to 0
1. HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\DeviceGuard\Scenarios\CredentialGuard
"Enabled"=dword:00000000

Step 4
From Windows Features, uncheck "Windows Hypervisor Platform"