asadermo
Member
How to boot windows 11 from hard drive (where ISO win 11 stored) .
My Computer
System One
-
- OS
- Win 11
- Computer type
- Laptop
- Manufacturer/Model
- DELL VOSTRO 3515
- CPU
- AMD RYZEN 5
- Memory
- 8 GB
- Graphics Card(s)
- AMD RADEON
Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature currently requires accessing the site using the built-in Safari browser.
You have to install it using a flash drive.How to boot windows 11 from hard drive (where ISO win 11 stored) .
Edit: I'm making an ISO with UUPDump to see if it still works. It worked for me to install Win 8.1 on my old tablet the other day.If you have the ISO you can make a bootable USB flash drive without any 3rd party software. All you have to do is mount the ISO. Then in File Explorer open up the new drive created when the ISO was mounted. Copy all of the folders to the flash drive and boot the computer from the flash drive.
By itself, you can't. There are two ways to make it bootable (maybe more):How to boot windows 11 from hard drive (where ISO win 11 stored) .
Grub (with OsProber) can usually attach itself to a Windows EFI file so GRUB should be a choice in Windows boot --if you want a Linux boot system with Windows as dual / multi-boot then install the Windows system first and if Linux hoses up the Windows boot simply fire up a Winpe (or any other windows bootable system) and run from cmd mode (admin /elevated) bcdboot: W:\windows /s :S /f UEFI where W is the windows system disk and S is the EFI partition.By itself, you can't. There are two ways to make it bootable (maybe more):
1. Use ventoy to boot from the ISO file on the hard drive. Ventoy is made for USB drives, but I don't see why it wouldn't work with an internal HDD as well, I'll have to try it in a VM.
2. Create a partition on the HDD to hold the contents of the ISO file, then extract the ISO file to the partition created to hold the contents. Different requirements for the partition exist depending on if you want to boot in legacy BIOS (CSM) mode or UEFI.
3. There are some linux bootloaders designed to boot ISO files, but I have no idea how/if they would work to boot a Windows 11 ISO file.
That is a limitation of the FAT32 filesystem. You can't have a file over 4 GB in FAT32. install.wim is usually over 4 GB in size. install.esd is compressed and usually less than 4 GB in size.I just tested booting my desktop from a spare 32 GB USB flash drive that had the folders that I copied from the mounted ISO, and it worked. I couldn't copy the folders from the ISO I downloaded from MS. I kept getting an error about not enough room on the flash drive for the install.WIM. I was able to copy the folder from the ISO from UUPDump because it used the install.ESD.
I know and understand about the file size limit. The part I don't understand is why the size limit when I was only trying to do a copy. the total size of all the files and folders is only 5.17GB.That is a limitation of the FAT32 filesystem. You can't have a file over 4 GB in FAT32. install.wim is usually over 4 GB in size. install.esd is compressed and usually less than 4 GB in size.
I decided to see why I couldn't copy the folder individually to the USB drive. The sources folder is the problem. On the ISO from MS the folder is 5.13GB and the Sources folder from the UUPDump ISO is only 4.10GB. I didn't realize that just the sources folder exceeded the file size.I know and understand about the file size limit. The part I don't understand is why the size limit when I was only trying to do a copy. the total size of all the files and folders is only 5.17GB.
Install.wim is the only file that exceeds the file size limit.I decided to see why I couldn't copy the folder individually to the USB drive. The sources folder is the problem. On the ISO from MS the folder is 5.13GB and the Sources folder from the UUPDump ISO is only 4.10GB. I didn't realize that just the sources folder exceeded the file size.
I formatted an 8GB flash drive with the NTFS file system and copied the files from the ISO from Microsoft. I'll test it later to see if my desktop will boot from it. For just making a basic bootable install disk do you know if there is an advantage of using Rufus instead of just copying the folders?Install.wim is the only file that exceeds the file size limit.
Note: UEFI systems usually can't boot in a NTFS partition, and Legacy BIOS can.I formatted an 8GB flash drive with the NTFS file system and copied the files from the ISO from Microsoft. I'll test it later to see if my desktop will boot from it. For just making a basic bootable install disk do you know if there is an advantage of using Rufus instead of just copying the folders?
There are many different ways of creating the USB flash drive and it largely depends upon which method UEFI or legacy BIOS (CSM) you want to boot the flash drive with. If you are booting in legacy BIOS (CSM) mode, then the flash drive needs to be MBR, and it needs to have a partition set as Active. The partition can be either NTFS or FAT32. Then just copy the files and folders from the ISO file to the flash drive.I formatted an 8GB flash drive with the NTFS file system and copied the files from the ISO from Microsoft. I'll test it later to see if my desktop will boot from it. For just making a basic bootable install disk do you know if there is an advantage of using Rufus instead of just copying the folders?
The simple answer is not to download the ISO direct from MS, because that has an install.wim that's almost always larger than 4GB. If you want to download from MS then use the MCT to make an ISO. This will always have an install.esd in the sources folder, and MS make sure that their install.esd is always less than 4GB.On the ISO from MS the folder is 5.13GB and the Sources folder from the UUPDump ISO is only 4.10GB.
I was testing to see if it was still possible to make a bootable flash drive by just copying the files and folders from a mounted ISO file.The simple answer is not to download the ISO direct from MS, because that has an install.wim that's almost always larger than 4GB. If you want to download from MS then use the MCT to make an ISO. This will always have an install.esd in the sources folder, and MS make sure that their install.esd is always less than 4GB.
Well,I was testing to see if it was still possible to make a bootable flash drive by just copying the files and folders from a mounted ISO file.
It is only guaranteed to be possible if you make the ISO with the MCT. MS always ensure the install.esd it uses is below the 4GB Fat32 limit.I was testing to see if it was still possible to make a bootable flash drive by just copying the files and folders from a mounted ISO file.
The answer to that question is yes.I was testing to see if it was still possible to make a bootable flash drive by just copying the files and folders from a mounted ISO file.
As far as I know that is for mbr disks.3. There are some linux bootloaders designed to boot ISO files, but I have no idea how/if they would work to boot a Windows 11 ISO file.