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How to Install Windows 7 from USB Flash Drive

What if you don’t have DVD-ROM and you are running Windows XP, you might have guessed in this case we can’t install windows 7. Since Windows 7 ISO size is around 2.24 GB so its obvious that you will need to burn windows 7 iso on DVD and another issue is you can’t start windows 7 installation by mounting ISO file on windows XP as Windows XP upgrade to windows 7 is not allowed. In such situation installing windows 7 from USB pen drive is feasible solution.
Here is small guide on how to install windows 7 from USB flash drive or USB pen Drive for Windows XP users.
How to Install Windows 7 from USB Flash Drive Requirement:
USB Pen Drive (Min 4 GB)
Windows 7 ISO (32 bit or 64 bit)

MBRwiz Download and Extract it on your hard drive (Diskpart utility for Windows XP doesn’t detect USB drive as Disk hence we need to use this free utility to make bootable USB drive).
1. Connect your USB Flash Drive to your computer Format USB drive
2. To Format USB Flash Drive Go to My Computer -> Right click on USB drive and select Format from context menu.
3. Now go to Start Menu->run->cmd (Open Command Prompt) and Type following command
convert i: /fs:ntfs (Where “I” is your USB drive latter)

4. Mount Windows 7 iso as drive (You can use Freeware MagicDisc download from here).
5. Type Start->run->cmd
Now dir to directory where you have extracted MBRWiz and run following commands

mbrwiz /list (note down disk number of your USB Pen drive)
mbrwiz /disk=X /active=X (X is Disk Number of your USB Drive)
exit
6. Now open another command window and type following command
J: (Drive letter of Windows 7 iso mounted with demon tool)
CD boot
bootsect /nt60 Y: (Y is drive latter of your USB drive )

7. Now copy all files from drive where you have mount Windows 7 iso
8. Now reboot your computer and press F9 to get your BIOS screen and select USB drive as your boot drive.
9. If every thing goes fine, Your Windows 7 Installation should start from your USB drive.

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3 Answers

trying to upgrade from windows XP pro to windows 7 pro error missing or corupt file ox80070241


The source you are installing from, either DVD or ISO file, is corrupt. Download a fresh copy of ISO file or burn a new DVD.

It is always better to install from ISO file directly using MagicDisc
or any such software.
If it still does not work, then i suggest that you backup all data and install windows 7 formatting the hard drive.

Nov 26, 2010 | Microsoft Windows XP Professional

2 Answers

I Wanted To Make a BOOT CD For Windows XP But The Problem is That I Have Windows Vista and i Dont Know What To Do So What Can i Do


How to make a bootable Windows Vista ISO DVD media
  1. Put all 3 downloaded files (namely install.wim, boot.wim and an executable X13-49120.exe) in the same folder (for this tutorial, let’s assume the files are put on C:\ else you need to modify the path accordingly).
  2. Run the X13-49120.exe executable. Windows Vista Setup Preparation will create a new folder “Vista” inside the folder and will populate the folder with all necessary Vista setup files which takes up about 2.52 GB disk space.
  3. Exit from the Install Windows screen.
  4. Download CDimage 2.52.
  5. Extract CDimage from CDimage.zip to the C:\ root directory.
  6. Open a command prompt shell, and run the following command: cdimage.exe -lVISTA_EN_DVD -m -u2 -bC:\Vista\boot\etfsboot.com C:\Vista\ C:\Vistax86.iso
    Bootable Windows Vista x86 DVD ISO image in UDF format will be created as vistax86.iso in C:\ or any folder you specified above.
  7. Burn the newly create ISO with a CD/DVD burning software such as Nero or Alcohol 120%. Try to burn at low speed (i.e. 4X) and turn on verification to ensure that the DVD creation is fine.
Visit here for illustrative guide on using CDImage GUI version to make the bootable DVD ISO.

Create a Windows Vista ISO image and DVD with Oscdimg
Another possible way to create a bootable Vista ISO and DVD is by using Oscdimg CD-ROM and DVD-ROM Premastering Utility, available via WinPE (Windows Preinstallation Environment) via Business Desktop Deployment 2007 or Windows Automated Installation Kit (AIK).
  1. Complete step 1 – 3 as above.
  2. In the command prompt window, run the following command: oscdimg -bC:\Vista\boot\etfsboot.com -h -u2 -m -lVISTA_EN_DVD C:\Vista\ C:\VistaDVD.iso
    A VistaDVD.iso UDF DVD image will be created and can be used to boot the computer from DVD to install Vista.
  3. Burn the ISO image file by using last step above.
Visit the guide to create Vista bootable DVD using vLite.
Note: For 64-bit Windows Vista, download etfsboot.com and put it into “\Vista\boot” folder. Or users using WAIK (WinPE), the etfsboot.com can be found at %Programfiles%\Windows AIK\Tools\PETools\amd64\boot\ folder. So simply replace -bC:\Vista\boot\etfsboot.com with -bC:\Program Files\Windows AIK\Tools\PETools\amd64\boot\etfsboot.com when making 64-bit Vista DVD image.

Aug 02, 2009 | Computers & Internet

1 Answer

DVD Writer not functioning properly in XP


Hi there.
While you are in XP go to the device manager, look down the list of devices for the DVD rom, click on the + icon next to the DVD rom, right click on the DVD and uninstall it, restart the PC and let windows re-detect the DVD and install it.
I also suggest that you clean the registry, download Ccleaner from here, install it and clean the system and registry.

http://www.filehippo.com/download_ccleaner/

Good luck and thanks for using FixYa!!

Mar 04, 2009 | Acer Aspire 4530-5889 Notebook PC

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