What is Mac HAL Driver? How to fix Machaldriver.sys errors?

Machaldriver.sys errors

Mac HAL driver is the driver for the Macintosh hardware application layer. It is an Apple software component that facilitates the installation and running of Windows on the Macintosh. In this article we will learn how to fix Mac HAL Driver Machaldriver.sys errors – Your computer has a driver or service that is not ready for this version of Windows 10. or WDF_Violation blue screen.

What is Mac HAL Driver?

Boot Camp is a preinstalled utility in macOS. It helps you to install and use Windows on Macbook. Named as Machaldriver.sys, it is a driver that allows Windows to communicate with Apple hardware and run the operating system in the same way as any hardware.

Fix Machaldriver.sys Errors

Several Machaldriver.sys related errors have been detected. They usually occur in case of incompatibility between the Apple driver and the Windows driver. In this article, we will suggest solutions that you can use to correct these errors.

1) Your computer has a driver or service that is not ready for this version of Windows 10.

The complete error message is as follows:

Mac HAL driver – machaldriver.sys: Your computer has a driver or service that is not ready for this version of Windows 10. No action is required. Windows Update will offer this version of Windows 10 automatically after the issues are resolved.

The error occurs in one of the following scenarios:

In either case, you must update the Windows 10 and BootCamp drivers to resolve the problem.

2) Blue screen error WDF_Violation

The error occurs when the MacHALDriver.sys causes the crash of Bootcamp.exe. This happens after entering the credentials.

To temporarily resolve the problem, you must rename the MacHALDriver.sys (available in the directory C: Windows system32 drivers folder) to MacHALDriver.bak.

To do this, start in safe mode and change the file name. However, once you have restarted, you may lose some Macbook features and the Fn keys will stop working.

Post this; you will have to wait for an update from Apple. Apple has recognized the problem and once the update is launched, you will be able to install Windows v1903 without any problem.

The baseline is that if there is a problem, it's mostly the driver problem and compatibility. You will have to wait until an update arrives and only then can it be resolved.

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