If you have sensitive data on your Dell PP18l laptop that you want erased, your safest option is to format. Formatting your computer completely erases your hard drive. Formatting your hard drive will require your operating system installation disc. You can format your Dell PP18l Laptop in about 30 minutes, depending on the speed of your computer.
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Things you need
- Windows installation disc
Insert your installation disc into your optical drive, then start your computer.
Press any key to boot from disc when prompted.
Select the "Install Now" option.
Enter your product ID code.
Read and accept the Windows licensing agreement.
Select the "Custom" option when asked what kind of installation you want.
Click on "Drive Options(Advanced)" when asked where you want to install Windows.
Click on "Format" then click "Next."
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