Windows/Prepare system for Virtualbox Virtualization

Virtualbox on Windows 11 does not run with virtualization by default. There are some security features enabled by default which cause the turtle status icon in VBox to appear. I read online that this means that HyperV is enabled on the host, so the virtual machine will run without hardware acceleration mode enabled (super slow).

This batch script will change all the settings necessary to make Virtualbox VM's run as fast as possible. The turtle icon should vanish after running these commands.

I forgot if I used AI, or had AI revised a batch script batch script I gave it from a YouTube video. Anyways, create a batch file with this file content and run it as administrator to fix slow virtualbox VMs 

@echo off
echo ============================================
echo Disabling Credential Guard, VBS, Hyper-V
echo ============================================

REM ------------------------------------------------
REM 1. Disable Credential Guard (Registry)
REM ------------------------------------------------
reg add "HKLM\SYSTEM\CurrentControlSet\Control\Lsa" ^
 /v LsaCfgFlags /t REG_DWORD /d 0 /f

reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows\DeviceGuard" ^
 /v LsaCfgFlags /t REG_DWORD /d 0 /f

REM ------------------------------------------------
REM 2. Disable Credential Guard with UEFI lock
REM ------------------------------------------------
mountvol X: /s

copy "%WINDIR%\System32\SecConfig.efi" ^
 "X:\EFI\Microsoft\Boot\SecConfig.efi" /Y

bcdedit /create {0cb3b571-2f2e-4343-a879-d86a476d7215} ^
 /d "DebugTool" /application osloader

bcdedit /set {0cb3b571-2f2e-4343-a879-d86a476d7215} ^
 path "\EFI\Microsoft\Boot\SecConfig.efi"

bcdedit /set {bootmgr} bootsequence ^
 {0cb3b571-2f2e-4343-a879-d86a476d7215}

bcdedit /set {0cb3b571-2f2e-4343-a879-d86a476d7215} ^
 loadoptions DISABLE-LSA-ISO

bcdedit /set {0cb3b571-2f2e-4343-a879-d86a476d7215} ^
 device partition=X:

mountvol X: /d

REM ------------------------------------------------
REM 3. Disable VBS (Registry – delete keys)
REM ------------------------------------------------
reg delete "HKLM\SYSTEM\CurrentControlSet\Control\DeviceGuard" ^
 /v EnableVirtualizationBasedSecurity /f

reg delete "HKLM\SYSTEM\CurrentControlSet\Control\DeviceGuard" ^
 /v RequirePlatformSecurityFeatures /f

REM ------------------------------------------------
REM 4. Disable VBS + LSA ISO via BCDEdit
REM ------------------------------------------------
bcdedit /set {0cb3b571-2f2e-4343-a879-d86a476d7215} ^
 loadoptions DISABLE-LSA-ISO,DISABLE-VBS

bcdedit /set vsmlaunchtype off

REM ------------------------------------------------
REM 5. Disable VBS via Group Policy equivalent
REM (Turn On Virtualization Based Security = Disabled)
REM ------------------------------------------------
reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows\DeviceGuard" ^
 /v EnableVirtualizationBasedSecurity /t REG_DWORD /d 0 /f

REM ------------------------------------------------
REM 6. Disable Core Isolation (Memory Integrity)
REM ------------------------------------------------
reg add "HKLM\SYSTEM\CurrentControlSet\Control\DeviceGuard\Scenarios\HypervisorEnforcedCodeIntegrity" ^
 /v Enabled /t REG_DWORD /d 0 /f

REM ------------------------------------------------
REM 7. Disable Windows Features
REM ------------------------------------------------
dism /online /disable-feature /featurename:Microsoft-Hyper-V-All /norestart
dism /online /disable-feature /featurename:VirtualMachinePlatform /norestart
dism /online /disable-feature /featurename:Microsoft-Windows-Subsystem-Linux /norestart

REM ------------------------------------------------
REM 8. Reboot
REM ------------------------------------------------
echo.
echo All changes applied.
echo System will reboot in 10 seconds...
PREVRANDOMNEXT