Installing Windows XP Vista and 7 Using A USB Flash Drive

What you need:

1) An empty USB flash drive, at least 1GB to 4GB in size (Is it necessary to be empty? Yes, because the program we will use formats the USB drive before copying window files)
2) NoviCorp Wintoflash (download here)
(NOTE: As of this writing, the program is still in beta, though I have not encountered any error or problem using it, we all know that using beta softwares may cause problems or still has some bugs in it.)
3. Windows XP VISTA 7 installer CD or a copy to your hard drive.
    An unmodified, legal copy of Windows XP, Vista, 7 
    Modified copy of Windows XP, Vista, 7 

Steps on installing Windows Xp from Flash Drive:

1. Prepare your flash drive. Run WinToFlash.exe and choose the wizard.

This one is self explanatory. Windows files path would be your Windows CD and USB drive is your flash disk. Next window will be copying the setup files to yourflash drive. In took about 30 minutes in my test using a 2 GB KingMax flash drive (I believe this result may vary depending on the speed of your source and your USB drive).

2. Turn on your laptop. Enter BIOS by pressing F2. Make sure that SATA Controller Mode is set to Compatible under Configuration. If you do not do this, the windows installer will not see your hard disk upon setup. Now Save and Exit.

3. Upon restart press F12 to choose Boot Device. Select your Flash Drive from the list:

4. This window will appear. Select 1st, text mode setup (boot from flash again after finish) here. You will now see the usual setup process when you install windows from CD.

5. When the initial copying of files is finish and the system restarts, you need to boot from flash drive again. But this time you will choose the first option in the picture above. (2nd, GUI mode setup). You will choose this option until the next 2 restarts and the first boot of windows. If you let it boot in hard disk, you will receivethe error:

Windows could not start because the following files is missing or corrupt:
\system32\hal.dll
Please re-install a copy of the above file.
If that happens, just restart your laptop and choose to boot from flash drive. Installation of windows finished after 35 minutes in my test. It may vary depending on the speed of your laptop and your USB drive.

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