Step 1:
Download any Windows OS from the official website, and then download Rufus Portable.
Windows 10 : https://www.microsoft.com/en-gb/software-download/windows10
Windows 11: https://www.microsoft.com/en-us/software-download/windows11
Rufus : https://github.com/pbatard/rufus/releases/download/v4.6/rufus-4.6p.exe
Step 2:
Install the Rufus Portable application
Step 3:
After completing the Rufus installation, open the application and select the drive. If the drive doesn't show up, click 'Show Advanced Drive Properties,' then select 'List USB Hard Drives.' Finally, choose the Windows ISO file in the Boot Selection
Step 4:
To change the option, windows to go in the image optionand then click 'Start
Step5:
Go to the BIOS, disable Secure Boot, then go to the boot menu and select the drive.
Step 6:
The portable Windows Ready can be easily used on any computer and is easy to carry. Enjoy!"