Windows 10: ISO on Desktop how do I CleanInstall from a USB

Dasha · Jun 29, 2021

Version 20H2 (OS Build 19042.1052) Clean Install Windows 10 from an MS ISO USB whatever is easiest G/Day still need help with Clean Install, Its got me beat' after so many try's many was including a DELL ISO that called Error it after 3 1/2 hrs, numerous other attempts and lot's of help and encouragement here from you all, I am stuck, gun-shy is the operative word DELL are just plain Confusing IE calling a "Clean Install" a recover, update, restore, anything but A CLEAN INSTALL that's how I ended up with part of an DELL Windows10 ISO Instead of Windows 10 on my USB So now I have a Microsoft ISO in ( C ) downloads and I saved it to my desktop How do I activate it before moving it from my desktop to the USB to make the USB "boot-able" Then what procedure's (Baby Step Please) do I use from here When do I Delete all Partitions from OC (C) The Screen Clip is the MS ISO file is from in downloads not the icon file I saved to the desktop? Though they are probably the same Regards

:)

ne6togadno · Jun 29, 2021

Bootable USB with ISO - What am I missing?

you can use pendrive with win too. in step 1 you have to select "custom iso"(or "other" cant remember how exactly it was dubed) and point win .iso file. i've used it for my install usb stick and it works fine.

copenhagen69 · Jun 29, 2021

Bootable USB with ISO - What am I missing?

I am trying to install win7 from a USB. I set the USB to be first boot and it finds it, but wont install the iso.

I have tried ...

Insert your USB flash drive to your running computer. As the first step, we need to run Command Prompt as administrator. To do this, we need to find cmd by typing 'cmd' in the search box on Windows Start Menu. After search result for 'cmd' appears, right click on it and select "Run as administrator".

Type 'diskpart' on Command Prompt (without quotes) and hit Enter. Wait for a while until the DISKPART program run.

Type 'list disk' to view active disks on your computer and hit Enter. There would be seen that the active disks shown as Disk 0 for hard drive and Disk 1 for your USB flashdrive with its total capacity.

Type 'select disk 1' to determine that disk 1 would be processed in the next step then hit Enter.

Type 'clean' and hit Enter to remove all of data in the drive.

Type 'create partition primary' and hit Enter. Creating a primary partition and further recognized by Windows as 'partition 1'.

Type 'select partition 1' an hit Enter. Choosing the 'partition 1' for setting up it as an active partition.

Type 'active' and hit Enter. Activating current partition.

Type 'format fs=ntfs quick' and hit Enter. Formatting current partition as NTFS file system quickly.

Type 'exit' and hit Enter. Leaving DISKPART program but don't close the Command Prompt instead. We would still need it for next process.

By default, Command Prompt's active directory for Administrator permission is on C:\Windows\System32>. We will navigate Command Prompt to set on DVD (F*Smile as its active directory. Just type 'f:' then hit Enter, and the active directory changed to F:.

Type 'cd boot' and hit Enter. Active directory changed to F:\boot>.

Type 'bootsect /nt60 d:' and hit Enter. Creating boot sector on D: drive (USB flash drive).

Type 'exit' and hit Enter to close the Command Prompt. Until this step we have made a bootable USB drive sucessfully, and the flash drive is ready to be used as a boot media.

Click to expand...

However when I get to bootsect it does not do anything .. says it is not a recognized internal command ...

Is there something I am missing? I even tried just loading the iso on the USB and booting, but did not work either

Is there an easier way?

copenhagen69 · Jun 29, 2021

Bootable USB with ISO - What am I missing?

Windows USB/DVD Download Tool - Microsoft Store
or
http://www.pendrivelinux.com/universal-usb-installer-easy-as-1-2-3/
Click to expand...

Tried the first program, but it fails .. not sure yet why but troubleshooting that ...

The pendrive seems to be only for linux? although seems very useful i dont think it will help me with this. Keeping it for future linux installs though

Have you copied all the files from the ISO to the flash drive? I can't see that step.

After step 10. (after formatting and making it the active partition)

Copy files from the ISO to flash drive.

Open CMD as administrator.

navigate to the flash drive, lets call it drive Z and type in the following commands.
Z:
cd boot
bootsect.exe /nt60 z:
exit

Then try again.
Click to expand...

hmmm if I already have the iso, do I just throw that in the usb drive?

yes you have to CD to the folder where the bootsect actually is... install iso boot folder.

Seconds use the m$ tool, it may fail on some UEFI systems, if not use RUFUS with GPT layout.
Click to expand...

ok looking into this as well...

Windows 10: ISO on Desktop how do I CleanInstall from a USB

ISO on Desktop how do I CleanInstall from a USB

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