It would depend if E: on your computer is the flash drive or just a hard drive.
If it a flash drive then you can open windows explorer and then right click on the flash drive and click format.
You can do that for the hard drive too. Just remember you will lose all the data in that drive
Depending on the format of the disk - A disk-drive, CD-ROM drive or DVD drive.
For any disk OTHER THAN THE ONE YOU BOOT FROM, simply open a command prompt and type: format d: (where "d" is the designator of the disk that you want to format) OR open windows explorer, select "my computer" then right click on the drive you want to format (again, it can't be the disk you boot from" If you want to format your C drive you'll need to boot from some other medium, such as the installation disk or a floppy.
The drive that the OS is installed on
Boot virus
Insert the RW-CD in the drive and right click on the cd drive and select the option as format disk
You'll need to boot from the installation CD then format the C drive from there. Note: you'll loose everything on the disk if you do that. ---- As long as you have an operating system disk you can also go to run: cmd: then type format (drive:) then push enter and when it asks you to deletey your internal memory then hit Y for yes or N for no. Remember this will delete everything on your hard drive so you would have to reinstall windows.
Sometimes it is needed due to the memory of the old hardisks otherwise just needed for partition of the hard drives
Since the hard disk drive uses the same data bus as the removable disk drive(s), it is usually installed adjacent to the removable disk (CD-ROM) drive(s).
BE AWARE of what you just asked, format means to erase EVERYTHING on the drive/partition. There are at least 4 methods that I know of that can erase Windows 7 off of your hard drive. * Open start menu, type CMD, and hit enter, type in FORMAT C:\ and hit enter. (C can be another drive letter, the one that has Windows 7 installed on it.) * Install another operating system over it, as most OS installs have the ability to format a partition. * Delete the partition that has Windows 7 installed on it using Disk Management (google it). * If you hook the HD that has 7 installed on it to another Windows computer, you can open (My on XP) Computer, right click the drive that has 7 installed on it, and click format.
format /c followed by the name of the drive you want to format.
you can format your drive from DOS, but once you do that you wont have an operating system and your computer will be useless.
You can check your hard disk's memory and search string by string for the virus, or if you don't want to spend that time, format it. Although the latter will delete EVERYTHING.