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8 Things To Know About The Alienware Legacy Boot

8 Things To Know About The Alienware Legacy Boot

What is the difference between UEFI and Legacy Boot?

It depends on the software being used.

The difference between the two is the process used from which the firmware operates to find the particular boot target.

The firmware is a piece of software that plays the role of an interface between the operating system (OS) and the hardware (motherboard).

Imagine it as the middle person that passes on messages from one client to another to make a system power up.

Legacy Boot is the older process, being around since 1975 when it was introduced by IBM. Legacy Boot is a process involved in the booting up of a pc, which utilizes the basic input-output system (BIOS) firmware.

UEFI, or Unified Extensible Firmware Interface, came to the computing stage in 2002 thanks to Intel, which now serves as a successor to the BIOS firmware and can act as its own operating system.

Considering its age in comparison to Legacy Boot, UEFI is a bit more advanced and usually used on newer technologies such as 64-bit versions of Windows (like Vista SP1 and later) and some newer smart books and tablets.

Should I boot from Legacy or UEFI?

Having the right technology matters.

It all depends which kind of pc or device you’re using.

Considering how new UEFI is compared to Legacy, UEFI would be a better process for newer technologies that contain hard drives with 2TB of space or larger. If you are using an old pc and/or device, UEFI might not work, so Legacy will have to do in that case.

Another aspect to consider is the manufacturer of your device. UEFI isn’t used by all of them for every application. It can be a bit tricky, so always check with your manufacturer to see if your pc is compatible with the newer UEFI.

Such companies like Microsoft and Linux occasionally have UEFI on their products, and they will have the standard Legacy Boot (BIOS) on them as well.

So, to put it simply, make sure you have the right hardware and compatibility before considering using UEFI.

Are UEFI and Legacy the same? 

No. However, they do share similarities.

As mentioned beforehand, UEFI is much newer than Legacy Boot by about 27 years.

They both, however, serve the same function in booting up a system, as well as work together on many pcs all around the world today. Legacy Boot can be considered the simpler method to boot up a system since it’s been around for quite a while now.

If programed right, UEFI can help a system boot up much faster, especially large server rooms that are vital to a business’s operations. It’s also much more secure from cyber-attacks when a pc is in its vulnerable booting-up state.

All in all, both UEFI and Legacy boot share the same function, booting up systems.

UEFI just does it a little better.

Should I change my boot mode to UEFI? 

Only if you have the know-how.

Unless your device has UEFI already installed, you have to know what you’re doing when implementing it. You’ll need some programming knowledge to get the job done.

To be more specific, you’ll have to tweak around with your current BIOS. The process can get a bit technical, but HP offers a few step-by-step guides on how the average person can do this.

Link to the simple version:

Link to the more complex version:

How do I enable Legacy Booting?

The answer is within the BIOS.

Once again, you’ll need to access BIOS mode on your pc to enable legacy booting.

First, boot up your system, press the F2 key continuously, select the “Boot” tab from the main BIOS menu, and then select Legacy in the central “Boot Mode” menu.

Should Legacy Boot be enabled? 

It depends on the partitions.

There are times where you’ll have to explicitly allow Legacy Boot in your BIOS settings, especially for older programs and operating systems, ones that UEFI isn’t compatible with. Anything with less than 2TB on the partitions will usually require Legacy Boot.

How do I enable Legacy ROM?

 Do it through BIOS.

Get into your BIOS menu as your device is starting up.

There will usually be a key you have to press to get into the BIOS setup (F12, F2, your menu should say).

Once there, you have to disable Secure Boot. To do this, click “Secure Boot Enable,” and there should be a disable option for you to choose. Click apply once you’ve done this.

Then go to General and Advanced Boot Options.

There will be a box you’ll have to check called “Enable Legacy Option ROMs,” and then click the apply button.

Lastly, go to the Boot Sequence section, and switch from UEFI to Legacy before clicking apply.

What is attempt Legacy Boot?

The regular way to boot up most systems.

To “attempt” Legacy Boot simply means to let your system start up using the Legacy Boot option.