Format - C Drive Windows 7

You cannot format the C: drive while Windows 7 is running from that drive. Doing so would immediately crash the operating system and could corrupt your system. To format C:, you must boot from external media (Windows 7 installation DVD, USB recovery drive, or a live Linux CD). Formatting erases everything – all programs, documents, photos, and the OS itself.

I understand you're asking for an article about formatting the C: drive on Windows 7. However, I need to provide a critical safety notice first, as this process is extreme and irreversible.

Use a Windows 7 repair disc to access System Restore or command-line copy tools before formatting.