How to Make a Clean Install of Windows 10, Windows 11 for Dell Laptops and
Desktops with UEFI Boot Enabled [UEFI Mode]
UEFI : [Unified Extensible Firmware Interface]
It's simple and more advanced with security features than BIOS. UEFI has a secure boot feature, which prevents malicious attacks, rootkits, and unauthorised software updates that could happen during OS booting.
Clean Install of Windows 10, Windows 11 for Dell XPS, Inspiron, Alienware Laptop's
and Desktop: [UEFI Mode]
Method#1 [If your PC has UEFI Boot]
Step#1:
Firstly, Create a Windows 10, Windows 11 Bootable USB Flash Drive
Step 2: Restart your laptop or PC and press F12 until System Setup or BIOS appears and advances to BIOS Setup.
Step 3: Navigate to System Configuration > Integrated NIC and select Enable UEFI Network Stack Option before clicking Apply-OK.
Step#4:
Restart your laptop or PC and press F12 until System Setup or BIOS appears and go to BIOS Setup.
Step#5
Select your bootable USB as the boot manager and install Windows 10.
Step#6
After finishing the installation of Windows 10, Windows 11, go back to BIOS Setup.
Step#7
Navigate to System Configuration > Integrated NIC and uncheck the Enable UEFI Network Stack Option before pressing the Apply-OK [OR] button.
Just restore it to factory settings.
Method#2 [If your PC has Legacy Boot]
Step#1:
Firstly, create a Windows 10, Windows 11 bootable USB flash drive.
Step#2:
Restart your laptop or PC and press F12 until System Setup or BIOS appears and switches to BIOS Setup.
Step#3:
Go to Settings > General > Boot Sequence [Mark UEFI Option]. [If Changed] and Apply
Step#4:
Go to Advanced Boot Options and Uncheck "Enable Legacy Option ROMs" and Apply
Step#5:
Go to Secure Boot > Secure Boot Enable and disable it and apply it.
Step#6:
Go to System Configuration > Integrated NIC and checkmark on Enable UEFI Network Stack Option and Apply-OK.
Step#7:
Restart your laptop or PC and press F12 until System Setup or BIOS appears and go to BIOS Setup.
Step#8
Select your bootable USB as the boot manager and install Windows 10.
Step#9
After finishing the installation of Windows 10, Windows 11, again go to BIOS Setup.
Step#10
Go to System Configuration>Integrated NIC and uncheck the Enable UEFI Network Stack Option and Apply-OK
[OR] Just restore it to factory settings.