Select the unallocated space, click New , then Format .
Boot from the disc (press F12, ESC, or Del during startup to change boot order). windows 7 wipe hard drive
DBAN will overwrite every sector of your hard drive with random data. A 500GB drive takes 4–8 hours. A 1TB drive can take 10+ hours. Select the unallocated space, click New , then Format
When finished, the drive is completely blank – no OS, no partitions, no recoverable data. The PC will show “Operating system not found.” ⚠️ Warning: This destroys everything . You cannot undo it. After a DBAN wipe, the drive is empty forever. What About SSDs? (Important!) If your Windows 7 PC has a Solid State Drive (SSD) instead of an old mechanical hard drive, do not use DBAN . A 500GB drive takes 4–8 hours
You’ll see a blue screen with DBAN’s menu. For most users, simply type: