How To: Install Windows 7 Or Windows 8 From USB Drive [Detailed 100% Working Guide]

Requirements:

*USB Flash Drive (Minimum 4GB)

*Windows 7 or Vista installation files.

Follow the below steps to create bootable Windows 7/Vista USB drive using which you can install Windows 7/Vista easily.

1. Plug-in your USB flash drive to USB port and move all the contents from USB drive to a safe location on your system.

2. Open Command Prompt with admin rights. Use any of the below methods to open Command Prompt with admin rights.

*Type cmd in Start menu search box and hit Ctrl+ Shift+ Enter.

Or

*Go to Start menu > All programs > Accessories, right click on Command Prompt and select Run as administrator.

3. You need to know about the USB drive a little bit. Type in the following commands in the command prompt:

First type DISKPART and hit enter to see the below message.

Next type LIST DISK command and note down the Disk number (ex: Disk 1) of your USB flash drive. In the below screenshot my Flash Drive Disk no is Disk 1.

4. Next type all the below commands one by one. Here I assume that your disk drive no is “Disk 1”.If you have Disk 2 as your USB flash drive then use Disk 2.Refer the above step to confirm it.

So below are the commands you need to type and execute one by one:

SELECT DISK 1

CLEAN

CREATE PARTITION PRIMARY

SELECT PARTITION 1

ACTIVE

FORMAT FS=NTFS

(Format process may take few seconds)

ASSIGN

EXIT

Don’t close the command prompt as we need to execute one more command at the next step. Just minimize it.

5. Next insert your Windows7/Vista DVD into the optical drive and check the drive letter of the DVD drive. In this guide I will assume that your DVD drive letter is “D” and USB drive letter is “H” (open my computer to know about it).

6. Maximize the minimized Command Prompt in the 4th step.Type the following command now:

D: CD BOOT and hit enter.Where “D” is your DVD drive letter.

CD BOOT and hit enter to see the below message.

7. Type another command given below to update the USB drive with BOOTMGR compatible code.

BOOTSECT.EXE /NT60 H:

Where “H” is your USB drive letter. Once you enter the above command you will see the below message.

8. Copy your Windows 7/Vista DVD contents to the USB flash drive.

9. Your USB drive is ready to boot and install Windows 7/Vista. Only thing you need to change the boot priority at the BIOS to USB from the HDD or CD ROM drive. I won’t explain it as it’s just the matter the changing the boot priority or enabling the USB boot option in the BIOS.

Clean Install Windows 7 with Upgrade Media

Let's be clear about what we're doing here

First up, let's define what it is I'm describing. For purposes of this discussion, a clean install--or what Microsoft calls a custom install--is when you boot your PC with Windows 7 Setup media (typically a Setup DVD, but with this version it could also be a specially created, bootable USB memory device containing the Setup bits) with the intention of installing just Windows 7 on the PC. There could be a previous version of Windows (XP or Vista) installed on the PC already. You will either install Windows 7 to a separate partition or will wipe out the previous Windows version during Setup. If it's the latter, please--please--be sure to backup all your data first. Please.

A clean install with Upgrade media is just what it sounds like: You will perform a clean install of Windows 7 using an Upgrade version of Windows 7, instead of the so-called (and more expensive) "Full" version. Upgrade versions of Windows 7 are far more common than Full versions, both because they are less expensive and because Microsoft offered (and in some cases is still offering) exceptionally cheap pricing on Upgrade media.

Note: One such special offer, the Windows 7 Family Pack, consists of 32-bit and 64-bit Windows 7 Home Premium Upgrade media Setup discs and a single product key which can be used to activate three copies of the OS on three different PCs. The Family Pack costs $150, or just $30 more than a single copy of Windows 7 Home Premium Upgrade. It's kind of a no-brainer. But rememeber what you're getting there: The Family Pack comes with Upgrade, not Full, product keys.

But here's the paradox. While anyone with a valid, licensed copy of Windows XP or Vista qualifies for any Upgrade version of Windows 7--and by the way, that's pretty much every single PC user on earth--only Vista users can do an in-place upgrade, which is the install type for which Upgrade media is optimized. If you're an XP user, there's no way to do an in-place upgrade. So you have to perform a migration, which consists of three steps:

1. Backup your crucial data and settings using Windows Easy Transfer (it's on the Windows 7 Setup DVD) and make note of the applications that are installed, because you'll have to manually reinstall them again after the fact.

2. Perform a clean install of Windows 7 using the Upgrade media. I describe this process in this article.

3. Restore your crucial data and settings using Windows Easy Transfer (part of Windows 7) and then reinstall your applications.

Put simply, there are millions of people out there who will be performing clean installs with Upgrade media. Many people have experienced issues with Windows 7 upgrades, especially those trying to do clean installs with Upgrade media, but if you follow the advice in this article, you will get up and running. You will get a legally activated, legitimate version of Windows 7 installed on your PC.

Is this process bulletproof? I'm not sure yet, but I think so. In any event, here's a checklist of things to try, in order from least painful to most painful. One of these methods will work for you.

Note: In all of these methods, you should observe one simple rule. Do not enter your product key during Setup. Instead, you will attempt to activate Windows 7 manually after it is installed. So you can just enter your product key later.

How to Change Startup Programs in Windows 7

Instructions

Add a Link to the Start up Folder

How to Upgrade to Windows 7 From Windows Vista

Instructions