How do I reformat the hard disk?

if you format the hard disk, all the data on it WILL be lost 1. if its your primary partition, meaning that the operating system is installed you can not format using the means that the second poster is mentioning. Also, you will loose your operating system and will need to re-install it. 2. Formating the drive with the Operating system you would need specific software (let me know if you need to know the names) or you can format by using the tools that are included in the install cd (Windows Vista, XP) right before you install.

Reformatting is not bad for your computer but it is bad for YOU you'll lose all your files you've saved on the hard drive If you'd insist though, you can reformat your hard drive by restarting your computer with your windows XP CD popped in. Keep pressing F8 as soon as your computer is back on and don't stop until you see a screen that asks you a couple of options, one of which is to run windows XP reinstallation I believe Click ok for each one and choose "Reformat C Partition ALL" or something like that, it will say and you will know It takes about 2 hours and your computer will be blank

Reformatting harddisk doesnt create much problem actually .. the only thing is that keep all ur data backed up and then check that u have the OS, drivers.. and stuffs.. Then just reformat it .. if u r using windows 98 or 2000 just right click on the drive and format or Vista or Xp go to DOS mode.. during start up and type format c; This should work ..

Format C: that is formatting a hard drive and there will be nothing left afterwards. Is that what you want to do? If not restate question and repost.

first thing is you will lose ALL Data on it and if it is the system disk you lose the system also. make sure you have backed up all the data, make sure you have a restart copy on a dskette or a cd-rom otherwise you will be stuck when you restart.

If it is a non system disk (i.e. not the c:\ drive) you can simply right click and choose format. If it is your c:\ drive, all you need is a windows bootable cd... for xp go to the repair console (press "R" after it loaded all the files... there should be a prompt for it) and type format c:\ and then press "y" at the prompt... for vista choose repair my computer and then command prompt and repeat the above steps (format c:\...) If you don't have one of those I think you can use a bart pe cd (http://www.nu2.nu/pebuilder/)

Make sure you aren't trying to reformat your main disk. This completely erases ALL of your data, with no chance of recovering it. You can't reformat the disk you are currently using to run your OS. One very safe way to do this, and to make sure that Windows does not mess anything up, is to download GParted Live CD and burn it on to a disc. Then, pop in the disc and restart your computer. GParted will run. You can then reformat or resize any of your partitions. See the sources if you want a link for download. GParted is a very safe way to reformat. I highly recommend it. Also, reformatting does not damage your hard disk. All this does is wipes clean your hard drive, then adds the correct rules for the drive's "Table of Contents". There are many types of formats for hard disks, but if you're installing Windows XP, Vista, or 7, you want to use NTFS. If you try to reformat, you will remove your data! I don't recommend this unless this is your objective!! ------ .: ItsJareds :. HTML, CSS, JS, PHP, XML developer http://wurbo.com/ http://www.spogg.com/

reformatting your hardisk is not bad for your computer, if you boot from your windows CD then begin the windows installation - you will get an option to format the disk simply follow this - http://www.computer-adviser.com/how-to-install-windows-xp.html

back up all your data (personal) and installation programs make sure your copy is working exit all programs including windows do a low level formatting