How to Wipe a Computer Clean Windows 7?


Before proceeding on how to wipe a computer clean window 7 and re-installation of Windows 7, make sure that the computer is set to boot from the CD-ROM drive.

Changing the Boot Sequence

  • To change the Boot Sequence in your computer, shut down your computer.
  • Start the computer and keep tapping either ESC, F1, F2, F8, or F10 during the startup screen.
  • Depending on the BIOS manufacturer, a menu will appear.
  • Enter the BIOS setup utility page.
  • Use the arrow keys on the keyboard and go to the BOOT tab.
  • The system devices will be shown and the main priority will be given to the hard drive.
  • Now set the main Priority to CD/DVD Rom. Save and exit the BIOS utility page.

How to Wipe Computer Clean and installing Windows 7

  • Now Insert your Windows 7 installation disc in the CD/DVD-ROM drive and restart the computer.
  • As the computer starts you will get a message “Press any key to boot from CD,” press any random key from the keyboard.
  • Hit Enter key at the Windows Setup welcome screen.
  • The Operating System installation screen will appear on the computer screen.
  • The first option will be to select your preferred language to select your choice of language and then click Next.
  • Click on agree on the License Agreement page and click Next.
  • On the Installation screen, from the various options available choose the Custom option.
  • Select the advanced option. For Disk 0 option, select and delete all partitions.
  • After you have deleted all the partition, you will see a single slot “Unallocated space.” now click on Disk 0 option again and select Next.
  • The Windows 7 installation process will start by formatting the entire hard disk and then installing Windows 7 on the hard drive.
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One thought on “How to Wipe a Computer Clean Windows 7?”

  1. Jason says:

    Thanks the last time i came to this website was how to create a bootable USB using MCT and it was very helpful. After the creation of the media tool i got busy and didnt get time to do the installation of the Operating system. But thanks again for this help, i followed the the same steps as how to wipe a computer clean for windows 7 but by using the bootable flash drive i created and it was the same. Thanks

    Rating: 5

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