How to Install Windows 8 from USB flash drive

9:42:00 PM | ,


Windows 8 build 7850 has recently been leaked and most of you would like to install it. You can install it by writing the image file to a DVD but here we are going to explain how to install Windows 8 from a USB Flash Drive. We have tested 2 methods and both of them work fine.
First the System Requirements
  • 4GB removable USB flash drive
  • A Windows 8 ISO file
  • Windows XP SP2, Windows Vista, or Windows 7 (32-bit or 64-bit)
Method 1
In this method we would be using the command prompt method to make a bootable USB Flash Drive.
Step 1: Run the DiskPart utility by typing diskpart at the Start menu search box.
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Step 2: Run the list disk command to check the status of your drive.
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Step 3: Run select disk 1 where the "1" is actually the corresponding number of your USB drive.
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Step 4: Run clean.
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Step 5: Once the thumb drive is clean,run create partition primary.
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Step 6: Make the partition active by entering active
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Step 7: Run the command format fs=NTFS quick to format the USB Flash Drive
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Step 8: Run the assign command which gives the USB drive a drive letter
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Step 9: Extract the Windows 8 ISO file using the WinRAR utility
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Step 10: Now copy the contents of the file from extracted ISO file to USB flash drive 
Method 2
This is the simpler method and we would be using Windows 7 USB/DVD download tool to install Windows 8.
Step 1: Download Windows 7 USB/DVD download tool from here and install it.
Step 2: Run the tool and in the SOURCE FILE box, type the name and path of your Windows 8 ISO file, or click BROWSE and select the file from the OPEN dialog box. Click NEXT.
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Step 3: Select USB DEVICE to create a copy on a USB flash drive.
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Step 4: If you are copying the file to a USB flash drive, select your USB device in the drop-down list and click BEGIN COPYING.
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Only 4 steps were required and your bootable USB flash drive would be ready.
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Once completed you would see the USB Flash drive with the icon as shown in the image below.
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After you have created a Bootable USB flash drive change the BOOT order in BIOS to boot from your USB drive first