Createa Bootable USB Installer for Windows 10. Once downloaded, launch the media creation tool and click Accept when prompted. Then follow the steps below to create your bootable USB installer for Windows 10: Select Create installation media (USB flash drive, DVD, or ISO file) for another PC. Click Next and set the preferred Language. 9Enter the Windows 10 product key you want to activate Windows 10 with for the edition (ex: Home or Pro) you want installed, and click/tap on Next. (see screenshot below) UPDATE 9/20/2023: Free Activation from Windows 7/8 key or upgrade to Windows 10/11 Ends If you do not have a product key available right now, then you can click/tap Fromthe main screen, make sure that your flash drive is selected under "device." From there, click the disk icon next to "create a bootable disk using," select your ISO and click start. The Runthe tool and give it permission to make changes to your PC. Click "Browse" to locate your Windows ISO file and then click "Next." On the next page, click "USB device." The tool can also burn the ISO to a DVD if you need that option. Use the drop-down menu to choose the USB flash drive you want to use. PressWindows + X and choose to open Disk Management. Right-click on the USB drive partition and click Format. Choose the FAT32 file system to be able to boot with UEFI support. Next, right-click on the drive partition and select 'Mark Partition as Active.' (See Image 1) Image 1: Mark USB drive partition as Active. Hi I'm trying to reinstall windows on Acer Aspire ES1-533 and I can't boot to usb, because UEFI boot mode is selected and I can't swap it to Legacy, as Boot Mode option is just greyed out. I've tried checking some information on the internet, it suggested to set a supervisor password, did that CLEAN EXIT. Close Command Box, on second screen choose Install Now, then Custom Install, then at the drive selection screen choose Unallocated Space, click Next to let it create needed partitions and start install - this makes it foolproof. Make sure to follow the setup steps in the first link tutorial to complete your install. Locatean entry called PortableOperatingSystem from the right panel. If you cannot find this key, right-click the blank and choose New > DWORD (32-bit) Value to create it. Double-click on it and set its value data from 1 to 0. After finishing changing the registry key, you should reboot your PC and check if you can install Windows on a USB drive. 1 Making the Media Creation Tool on a USB flash drive or a DVD; 2- Booting the computer from the Media Creation Tool; and. 3- Following along with the setup routine. Microsoft designed the procedure so that the average user can do it without resorting to fancy high-tech maneuvers. Startyour computer then proceed to strike the appropriate key or command to load the BIOS. After loading the BIOS or UEFI, connect your USB media or connect the DVD install media. Brand CaH9A.