- 1). Insert the USB thumb drive into your computer. Go through your hard drive and backup any important file or documents, as they will be lost during the reformatting.
- 2). Insert the Vista CD into your computer and reboot the PC.
- 3). Press any key to boot from the CD.
- 4). Select the "Install Now" button.
- 5). Choose the option to "Get Important Updates" and re-enter your product ID.
- 6). Click on the button to accept the licensing agreement and choose the option to perform a "Custom" installation.
- 7). Click on the "Advanced Drive Options" button and select the option to "Delete" your existing partitions.
- 8). Choose the option to "Create" a single partition and select the option to format it using your desired file system type.
- 9). Highlight your newly formatted partition and press "Enter" to complete the re-installation of Vista.
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