Fixing LDPlayer Not Detecting VT When It Is Already Enabled in BIOS
If Virtualization Technology (VT) is enabled in BIOS but LDPlayer still reports it as disabled, other software may be using virtualization. The usual culprits are Avast's hardware-assisted virtualization, Windows hypervisor features, and Me
Before You Start
Prerequisites: An administrator account on your PC.; Confirm that VT is enabled in your BIOS. See the VT guide for your manufacturer if it is not.; Save your work. You will restart the PC during these steps.
## Overview If Virtualization Technology (VT) is enabled in BIOS but LDPlayer still reports it as disabled, other software may be using virtualization. The usual culprits are Avast’s hardware-assisted virtualization, Windows hypervisor features, and Memory integrity. Check them in the order below. Each step changes a security or system setting, so read the security note before you start.
## Why this happens VT is a processor feature that only one hypervisor can use at a time in some setups. If Windows or an antivirus product already uses it, LDPlayer may not get access. Turning off those features frees VT for LDPlayer. Confirm the setting in BIOS first, because LDPlayer cannot change it for you.
## Security note The steps below lower Windows security features in several places. Each one has a revert step.
- Avast hardware-assisted virtualization (steps 1–5): Avast may use this feature for some protection. Turning it off may reduce that protection. To revert, select the same check box in Avast’s Troubleshooting page and restart.
- Hyper-V and Windows features (steps 6–9): Turning these off reduces virtualization-based isolation that Windows uses. Windows Sandbox can no longer run after you clear it. To revert, select the features again in Turn Windows features on or off and restart.
- Hypervisor launch (steps 10–13): Disabling the hypervisor at boot turns off features that depend on it. To revert, use the command in the Notes section and restart.
- Memory integrity (steps 14–19): This feature helps protect Windows from some kinds of malware that try to run in the kernel. Turning it off reduces that protection. To revert, switch Memory integrity back on and restart.
Run a full scan with your security software after you finish, and turn each feature back on when you no longer need it for LDPlayer.
## What to expect After each restart, LDPlayer may report VT correctly. If it still does not, go to the next section. Some changes may need several restarts to take effect.
## Verify Open LDPlayer and view the diagnostic information from the menu in the upper-right corner. Check the VT entry. It should show that VT is enabled.
## Common mistakes
- Changing the BIOS setting but skipping the Windows checks.
- Turning off every item at once and forgetting which one fixed the problem.
- Forgetting to revert the security features after you finish.
## Troubleshooting
- If you see the error g_bGuestPoweroff fastpipeapi.cpp:1161/1153 during loading, see How to Fix the g_bGuestPoweroff Error.
## Notes and Troubleshooting
- LDPlayer 9 can work with Hyper-V, so turning it off may not be required. Turn it off only if the earlier steps have not fixed detection.
- Memory integrity is part of Device security in Windows 10 build 17903 and later. It isolates system resources from programs. Turn it off only if the emulator will not run with it on.
- To undo the command in step 11, open Command Prompt as administrator, run
bcdedit /set hypervisorlaunchtype auto, and restart. - If you turned off Avast’s setting, you can turn it back on later. Keep antivirus protection active while you test LDPlayer.
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