How to boot from ISO disk to fix Windows boot issue
How do you boot up from the iso disk that was created from another pc. trying to fix win10. Okay got to advanced options and there is not automatic repair option. system restore
Startup repair can not repair no operating system
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You need to first prepare the ISO file:
Prepare Windows 10 ISO file
After you have downloaded the Windows 10 ISO, you need prepare it, this is especially important for Windows 7 users..
After obtaining the .iso file you can use the built in Disc Image burning tool or Microsoft .iso to USB/DVD tool to create a bootable DVD or USB (requires a blank DVD or USB flash stick of at least 4 GB).
After downloading the .ISO file, right click it and click Burn disc image
Insert a blank DVD
Windows 8/8.1 users can mount the .ISO file and start the upgrade automatically. Learn more here
Important:
If you are creating a bootable USB thumb drive, make sure the thumb drive is first formatted as FAT32.
Connect the thumb drive
Right click thumbdrive
Make sure FAT32 is selected as the file system.
For UEFI based systems
If your computer is UEFI based, these are normally systems that come pre-loaded with Windows 8 or later, you will need to prepare the ISO file for such a configuration or you will receive an error message during setup. The thumbdrive needs to be formatted as FAT32 and use the GPT partitioning scheme. To do this, you need to use Rufus, a small tool you can download for free.
Rufus — credit: Pete Batard/Akeo
After you have installed Rufus:
- Launch it
- Select ISO Image
- Point to the Windows 10 ISO file
- Check off Create a bootable disk using
- Select GPT partitioning for EUFI firmware as the Partition scheme
- Choose FAT32 NOT NTFS as the File system
- Make sure your USB thumbdrive in the Device list box
- Click Start
- Close when complete
Once you have your Windows 10 installation media ready, all you need to do is boot from the disc or USB thumb drive to begin setup.
To learn how to change your BIOS options to boot from the DVD drive, see the following tutorial:
Once your computer is set to boot from the DVD, you should see this option.
If you are installing from a thumb drive, see the following instructions how to prepare your computer to boot from one:
How to: Create a bootable ISO file from your Windows 10 Download for reinstallation
Technical Level : Basic
Summary
The primary method of delivery for Windows 10 will be through Windows Update. Microsoft also provides ISO media, but if you are are already downloading Windows 10 through Windows Update, why not create your own? This is convenient for reinstall purposes especially if you need to perform a repair upgrade. Windows 10 already provides a recovery drive and reset pc functions, but these are limited by clean installs. Creating a ISO from the same PC you upgraded is also convenient if you have a second computer running a qualifying previous version of Windows you would like to upgrade, so it significantly saves on banwidth.
Details
Please note, if you plan to use this same ISO image to install or upgrade another computer, it must be running the same edition or at least have a product key that can activate it.
After downloading Windows 10 through Windows Update, a copy of the installation file called a Install.esd (Electronic Software Delivery) is created in the folder C:\$Windows.
Press Windows key + R
Copy the Install.esd file from the folder to your Downloads or Documents folder.
If you don’t see it, enable Show hidden files and folders.
Download the latest version of ESD Decrypter
(use 7zip to extract the compressed file)
Extract esd-decrypter-wimlib-4.7z to a folder.
You will need a free software called 7zip to do this:
After you have extracted the files, put the appropriate .ESD file you downloaded into that same folder.
Right click decrypt file in the same folder and click Run as administrator
Select option 2
When complete, burn to a blank DVD or create a bootable copy on a USB thumbdrive.
Preparing the .ISO file for installation.
See instructions for burning .ISO files in Windows 7 or later:
You can also use the Microsoft USB/DVD Tool, which is recommended for Windows XP users.
For UEFI based systems
If your computer is UEFI based, these are normally systems that come pre-loaded with Windows 8 or later, you will need to prepare the ISO file for such a configuration or you will receive an error message during setup. The thumbdrive needs to be formatted as FAT32 and use the GPT partitioning scheme. To do this, you need to use Rufus, a small tool you can download for free.
Rufus — credit: Pete Batard/Akeo
After you have installed Rufus:
- Launch it
- Select ISO Image
- Point to the Windows 10 ISO file
- Check off Create a bootable disk using
- Select GPT partitioning for EUFI firmware as the Partition scheme
- Choose FAT32 NOT NTFS as the File system
- Make sure your USB thumbdrive in the Device list box
- Click Start
- Close when complete
Otherwise, you download the official ISOs from Microsoft or use the one that will be provided as part of your upgrade.
How to install the latest Windows 10 build from within Windows 8.1 or Windows 7
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Sumit
Volunteer Moderator- Microsoft Community
Mark the reply as helpful or answered to help others if your query is resolved
4 people found this comment helpful
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Thank you Andre for another brilliant tutorial.
On a windows 8.1 machine where i am logged in using my insider account i reserved the upgrade to win 10 just a couple of weeks agao after the keys and iso for tech preview were no longer available from MS. I can see the Install.esd in the location you describe (it auto downloaded on 28th July) but it is not clear if i should wait for the notification to upgrade and then upgrade before creating the iso as you describe for win 10 or if it is ok just to go ahead and create the iso before the upgrade has been applied?.
EDIT: ahh i just found the reddit option .
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Andre, thank you so much a very nice article. Can I use this ISO to do the upgrade? Will it recognize my machine as valid if I use the ISO to upgrade? And last, after I do an upgrade then can I do a clean install?
As I understand it first you must upgrade to register your machine with MS then you can do a clean install from then on out, correct?
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There seems to be a lot of folks facing activation issues on their new upgrade and others are having issues on their old windows version install with things like windows updates errors and corrupt downloads as well as GWX app issues.
The upgrade is seamless if you just go to http://www.microsoft.com/en-us/software-download/windows10 and click the «Download Tool Now» button for the architecture of the machine you are using to either upgrade or create installation media. 🙂 It is worth the time and effort for sure. 😉 The whole process will cost you one hour or less depending on the machine you’re using.
I have not created installation as yet but can confirm the actual upgrade process is very slick.
This was after my reserved copy and Get Windows 10 app (windows updates) method of upgrade failed. The files downloaded but i never got the notification to upgrade. Reviewing windows updates history revealed there had been many failed attempts at installing the win 10 upgrade. I used the deleting whole directory and refreshing registry to get windows updates to try redownloading upgrade files but failed again with same and similar error codes.
There is no need to use the deleting $Windows.
BT directory method (which has appeared to get the upgrade in ok for some) as the Download Tool creates a $Windows.
How To Boot From ISO File
Last Updated on October 19, 2020 by admin 4 Comments
Now-a-days, many of us use advanced backup tools such as Redo Backup, Macrium Reflect, and Acronis True Image. Almost every good backup software out there lets you create rescue media so that you can quickly restore a previously created backup image without booting into Windows.
While it’s always a good idea to create a rescue CD and store it in a safe location, you might want to directly boot from the rescue ISO to create an backup image or restore a previously created backup image without creating the bootable media.
Users who would like to boot from an ISO file without creating a bootable media will be glad to know that it’s actually possible to boot directly from an ISO image without extracting or creating bootable CD/USB. The only catch is that your PC must be bootable. For instance, you can add Acronis True Image or Macrium Reflect rescue ISO entry to the boot menu and access them right from the boot menu.
Please note that even though you can use this guide to boot from Windows 7/8/8.1 ISO file and repair your PC using the startup repair and advanced tools, this guide doesn’t help you install Windows directly from ISO file.
When you attempt to install Windows from directly from ISO, you’ll get “A media driver your computer needs is missing. This could be a DVD, USB or Hard disk driver” error. So if you want to boot from ISO, either follow our how to boot Windows 8 from ISO file or use ISO2USB tool to prepare bootable USB.
NOTE: We suggest you store the rescue ISO file in any drive other than the system (Windows) drive to avoid deleting the ISO file when you restore a previously created backup.
Step 1: Start the procedure by downloading and installing the excellent EasyBCD (free edition) on your PC that you would like to boot from ISO file.
Step 2: Launch EasyBCD software. In the left-pane, click Add New Entry button.
Step 3: Under Portable/External Media section, switch to the ISO tab.
Step 4: Enter a name for your ISO entry that you would like to see in the boot menu, and click the browse button next to the Path box to browse to the ISO file that you would like to add to the boot menu.
Select the Mode as Run from Disk and then click Add Entry button to the ISO entry to the boot menu.
Step 5: To add another ISO file entry to the boot menu, repeat Step 2, 3, and 4 again.
That’s it! From here on, the newly added ISO file entry will appear on the boot menu along with your Windows entry. Select the ISO entry and then press any key when you’re asked to do so to begin booting from the ISO. Good luck!
