What is needed to switch a laptop from Legacy to UEFI boot?

CharlieDog

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I looked through the tutorials, and I thought there was one on what is needed-software-sorry if I missed it. I have an older Lenovo Thinkpad that in the end will probably not be able to run Windows 11, but I guess I would like to try to switch it from Legacy to UEFI. When I've tried to do it in the past, the screen goes straight into the BIOS at startup and will not go any further. TIA
 
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Josey Wales

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Bree

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I have an older Lenovo Thinkpad that in the end will probably not be able to run Windows 11, but I guess I would like to try to switch it from Legacy to UEFI. When I've tried to do it in the past, the screen goes straight into the BIOS at startup and will not go any further
If it has an Intel processor that's 7th generation or older then it's not supported for Window 11. Likewise, if it has TPM 1.2 it's not supported either, TPM 2.0 is required. The PC Health Check app can tell you if it's able to run W11.


You cannot just switch the boot mode of the bios from Legacy to UEFI, you also need to convert the formatting of your hard drive from MBR to GPT and create an EFI partition otherwise it cannot boot. To do this conversion without data loss is not a trivial task. It can be done, but if your Thinkpad isn't able to run W11 it's probably not worth the bother.


Edit: If you are talking about the Lenovo IdeaPad 330-17IKB in your specs, then from what I can make out it may meet the minimum W11 requirements. The only thing I'm not sure of is the TPM.
 
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    fully 'Windows 11 ready' laptop. Windows 10 C: partition migrated from my old unsupported 'main machine' then upgraded to 11. Now 11 has been released it has been re-imaged back to 10 and awaits the upgrade to be offered in Windows Update.


    My SYSTEM THREE is a Dell Latitude 5410, i7-10610U, 32GB RAM, 512GB ssd, Windows 11 Pro.
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    unsupported machine: Legacy bios, MBR, TPM 1.2, upgraded from W10 to W11 using W10/W11 hybrid install media workaround.


    My SYSTEM THREE is a Dell Latitude 5410, i7-10610U, 32GB RAM, 512GB ssd, Windows 11 Pro.

CharlieDog

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Thanks for the replies. It sounds like it might be worth doing even if the laptop doesn't update to Windows 11-as long as the computer is capable of handling it.
 

My Computer

System One

  • Operating System
    Windows 10 Home Version 21H1
    Computer type
    Laptop
    Manufacturer/Model
    Lenovo IdeaPad 330-17IKB
    CPU
    Core i5-8250U 1.6 GHz
    Memory
    20 GB DDR4-2400
    Hard Drives
    Samsung EVO 860 500 GB SSD
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    Chrome

Bree

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It sounds like it might be worth doing even if the laptop doesn't update to Windows 11-as long as the computer is capable of handling it.
As long as it has a UEFI bios then it's capable. Once booted into Windows there seems to be no difference in performance, whether it has a Legacy/MBR or a UEFI/GPT install.
 

My Computers

System One System Two

  • Operating System
    Windows 11 Home
    Computer type
    Laptop
    Manufacturer/Model
    Acer Aspire 3 A315-23
    CPU
    AMD Athlon Silver 3050U
    Memory
    8GB
    Graphics Card(s)
    Radeon Graphics
    Monitor(s) Displays
    laptop screen
    Screen Resolution
    1366x768 native resolution, up to 2560x1440 with Radeon Virtual Super Resolution
    Hard Drives
    1TB HDD
    Browser
    Edge, Firefox
    Antivirus
    Defender
    Other Info
    fully 'Windows 11 ready' laptop. Windows 10 C: partition migrated from my old unsupported 'main machine' then upgraded to 11. Now 11 has been released it has been re-imaged back to 10 and awaits the upgrade to be offered in Windows Update.


    My SYSTEM THREE is a Dell Latitude 5410, i7-10610U, 32GB RAM, 512GB ssd, Windows 11 Pro.
  • Operating System
    Windows 11 Pro
    Computer type
    Laptop
    Manufacturer/Model
    Dell Lattitude E4310
    CPU
    i5 M 520
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    0T6M8G
    Memory
    4GB
    Screen Resolution
    1366x768
    Hard Drives
    500GB HDD
    Browser
    Firefox, Edge
    Antivirus
    Defender
    Other Info
    unsupported machine: Legacy bios, MBR, TPM 1.2, upgraded from W10 to W11 using W10/W11 hybrid install media workaround.


    My SYSTEM THREE is a Dell Latitude 5410, i7-10610U, 32GB RAM, 512GB ssd, Windows 11 Pro.

CharlieDog

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Thanks for the replies, but the laptop I'm referencing is a ThinkPad W540 with a Core i7-4800MQ CPU, a backup/traveling machine, not my daily driver. The IdeaPad 330-17IKB passes the requirements for W11. I did see an article claiming (Microsoft?) UEFI will boot quicker than Legacy, so I was going to see if I could try it.
 

My Computer

System One

  • Operating System
    Windows 10 Home Version 21H1
    Computer type
    Laptop
    Manufacturer/Model
    Lenovo IdeaPad 330-17IKB
    CPU
    Core i5-8250U 1.6 GHz
    Memory
    20 GB DDR4-2400
    Hard Drives
    Samsung EVO 860 500 GB SSD
    Browser
    Chrome

Bree

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I did see an article claiming (Microsoft?) UEFI will boot quicker than Legacy, so I was going to see if I could try it.
UEFI may shave a couple of second off the boot times, according to this test....

Once booted to Windows there should be no measurable difference, as far as I can see.
 

My Computers

System One System Two

  • Operating System
    Windows 11 Home
    Computer type
    Laptop
    Manufacturer/Model
    Acer Aspire 3 A315-23
    CPU
    AMD Athlon Silver 3050U
    Memory
    8GB
    Graphics Card(s)
    Radeon Graphics
    Monitor(s) Displays
    laptop screen
    Screen Resolution
    1366x768 native resolution, up to 2560x1440 with Radeon Virtual Super Resolution
    Hard Drives
    1TB HDD
    Browser
    Edge, Firefox
    Antivirus
    Defender
    Other Info
    fully 'Windows 11 ready' laptop. Windows 10 C: partition migrated from my old unsupported 'main machine' then upgraded to 11. Now 11 has been released it has been re-imaged back to 10 and awaits the upgrade to be offered in Windows Update.


    My SYSTEM THREE is a Dell Latitude 5410, i7-10610U, 32GB RAM, 512GB ssd, Windows 11 Pro.
  • Operating System
    Windows 11 Pro
    Computer type
    Laptop
    Manufacturer/Model
    Dell Lattitude E4310
    CPU
    i5 M 520
    Motherboard
    0T6M8G
    Memory
    4GB
    Screen Resolution
    1366x768
    Hard Drives
    500GB HDD
    Browser
    Firefox, Edge
    Antivirus
    Defender
    Other Info
    unsupported machine: Legacy bios, MBR, TPM 1.2, upgraded from W10 to W11 using W10/W11 hybrid install media workaround.


    My SYSTEM THREE is a Dell Latitude 5410, i7-10610U, 32GB RAM, 512GB ssd, Windows 11 Pro.
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