Windows 10: how to change legacy to uefi

I want to change my bios legacy to uefi

bc my bios and old

my laptop info:

OS Name Microsoft Windows 10 Pro Version 10.0.19042 Build 19042 Other OS Description Not Available OS Manufacturer Microsoft Corporation System Name BERNARD-LAPTOP System Manufacturer Acer System Model Extensa 5635Z System Type x64-based PC System SKU Processor PentiumR Dual-Core CPU T4300 @ 2.10GHz, 2100 Mhz, 2 Cores, 2 Logical Processors BIOS Version/Date Phoenix V0.3310, 20/11/2009 SMBIOS Version 2.5 Embedded Controller Version 255.255 BIOS Mode Legacy BaseBoard Manufacturer Acer BaseBoard Product BA50-MV BaseBoard Version Not Applicable Platform Role Mobile Secure Boot State Unsupported PCR7 Configuration Binding Not Possible Windows Directory C:\WINDOWS System Directory C:\WINDOWS\system32 Boot Device \Device\HarddiskVolume1 Locale United States Hardware Abstraction Layer Version = "10.0.19041.488" User Name BERNARD-LAPTOP\berna Time Zone Malay Peninsula Standard Time Installed Physical Memory RAM 2.00 GB Total Physical Memory 1.87 GB Available Physical Memory 304 MB Total Virtual Memory 3.87 GB Available Virtual Memory 1.46 GB Page File Space 2.00 GB Page File C:\pagefile.sys Kernel DMA Protection Off Virtualization-based security Not enabled Device Encryption Support Reasons for failed automatic device encryption: TPM is not usable, PCR7 binding is not supported, Hardware Security Test Interface failed and device is not Modern Standby, Un-allowed DMA capable bus/devices detected, TPM is not usable Hyper-V - VM Monitor Mode Extensions No Hyper-V - Second Level Address Translation Extensions No Hyper-V - Virtualization Enabled in Firmware No Hyper-V - Data Execution Protection Yes

:)

 

Legacy to UEFI

I'm debating moving to UEFI form my now legacy BIOS (Award Software Int.) the mother board is a GA-Z68XP-UD3 rev1.0 on the the following link it shows a UEFI BIOS U1J )UEFI BIOS)

GA-Z68XP-UD3 (rev. 1.0) Overview | Motherboard - GIGABYTE Global

Currently I'm running the legacy F10 BIOS. Does installing the UEFI BIOS automatically take care of everything to get to the UEFI BIOS? Installing the UEFI BIOS following the instructions using the Q-flash method GIGABYTE How to Reflash Motherboard BIOS

What's steps do I take and in what order?

Much appreciated

 

Quick UEFI/Legacy question

I have had Hawaii cards and Fiji cards with UEFI roms, used 1 at a time on an Asus P5K Premium motherboard LGA 775 with Q6600 without an issue. AMD ROMs are Hybrid ROMs ie have a legacy section with UEFI module, so you won't have an issue with card which has UEFI ROM on legacy system. The legacy sytem will just ignore the UEFI module in vbios.

To make Windows show UEFI as bios mode you need your Z97 Pro Gamer in "Pure UEFI" mode (ie CSM = OFF). Windows IIRC only changes between legacy / UEFI on install, so even if you change to CSM=Off it may not show UEFI bios mode in Windows system info tool. I have not had 2 GPUs in a system at one time, even if I had them, I thought my PSU was not up to the job, so can not comment if only the primary display card requires UEFI module and it is irrelevant if secondary GPU does not.

If you get black screen/issue after setting CSM off then remove the card with legacy ROM, if mobo boots then you'll know you need to update the ROM on that card.

 

Problem Regarding Bios Change from UEFI to Legacy

I have hp pavilion p045tx with windows 10 pro. I recently install Ubuntu with windows 10 so for that I convert my bios setting from UEFI to Legacy mode for install third party software like wireless Driver and all in Ubuntu.
But after every restart the bios setting change to default and that is to UEFI mode and that will cause an problem of no OS detect. Every time I have to go to bios setting and enable the legacy mode to start my OS. Can anyone suggest me what to do in this
case.