I know the following works as I used it numerous times.
If you do not have a Windows Vista installation DVD, you can download a legal copy with SP1 integrated from here:
Download Official Windows Vista RTM with SP1 Setup Files (32-bit and 64-bit).
Only Windows Vista Ultimate with SP1 (X64 or X86) download is available, but if, during the install, you do not enter the product key
when initially prompted for it (which you must have to use the download), then you will be prompted to select the version of Vista you
want to install. You can activate once the install is done.You do need a valid installation key, which should be on the COA sticker on the computer, to activate the installation. Windows Vista Home Basic
Windows Vista Home Premium
Windows Vista Business
Windows Vista Ultimate
Downloaded the Vista X64 or X86 files.
X64: You must be running on a 64bit (X64) system to create a 64Bit install DVD or flash driveinstall.wim
boot.wim
X14-63453.exe
X86: install.wim
boot.wim
X14-63452.exe
Double click on
X14-63453.exe or
X14-63452.exe. It extracts all the files into a Vista sub-folder.
Downloaded
Windows Bootable Image Creator zip then extract the files to a folder.
Open the folder and run
WBICreator.exeClick
NextSelect OS Type:
Windows VistaCD/DVD Label:
VistaX64 or
VistaX86Setup Location: The Vista folder created when you double clicked on
X14-63453.exe or
X14-63452.exe.
Output Path: Somewhere with enough free space to hold the .iso file that will be created (X64 = 3,837,112KB, X86 = 3,013,816KB).
Click
GO.
When done a
VistaX64.iso or
VistaX86.iso file will be created in the Output Path you chose.
You can use the .iso as input to a burner program like
ImgBurn to create a Vista Install DVD, or you can use it as Input to
Universal USB Installer – Easy as 1 2 3 to create a Vista install flash drive.
I created a X86 flash drive and used it to install a clean copy of Vista Home Basic on my HP DV2200 Laptop. Worked great using the key on the COA sticker of the laptop.
Remember to use the X64 or X86 version of Vista you currently have.
Note: You may need to download drivers for the computer from the manufacturers web site so I would suggest getting the Network (LAN and Wireless) and video/VGA drivers ahead of time so you can install them as soon as you finish installing Vista.