Format a computer using command prompt in BIOS are often used when you want to format system partition on your hard drive, to proceed, you need to prepare a system bootable CD/DVD, if you have no idea on how to make a bootable CD, check here to see screenshot guide on how to make a system repair disc.
1. Insert bootable CD/DVD >
Reboot > Press F2/F8/Delete bottom (or any other key according to your pc prompt) to go into BIOS
2. Define boot order: make boot form CD/DVD as the first option > Save > Exit
3. Reboot > click Use recovery tools that can help fix problems starting Windows when you disc loaded> Windows installation > Command Prompt
4.Type:format c: /fs: ntfs
To format a computer c drive in windows 7 and reinstall it, just insert a your bootable system CD/DVD after the steps above.
NOTE: Format is not deleting your data, but make a file system into one partition so that it can be read and write, you can format computer hard drive to reinstall Windows 10 or Windows 7, but not a recommend operation if you want to recycling old disk.
Check completely wipe hard drive before donating.
There are many ways to format non-system partition, also called data partition or logical partition, I will listed 4 of them to format data partition:
cmd
in the Run box (WIN+R)
- diskpart
- list disk
- select disk ###
- list partition
- Select partition ###
- format
- exit
diskmgmt.msc
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