How do I format drive c using dos command

December 28, 2016 at 13:13:52
Specs: Windows 7
I get wrong command when i boot from a and put format c :/s

i have win 7 and nfts i tried different formats such as forma c:/s/*.* i get too many parameters

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December 28, 2016 at 14:41:42
Maybe first of all---why are you trying to format the drive with a MS-DOS command? If you're looking to reinstall Win7.....

"Channeling the spirit of jboy..."

message edited by T-R-A

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December 28, 2016 at 16:00:10
Reasons aside, to answer your question you've typed the command wrong (wrong syntax). It should be:

format c: /s

But if your goal is to re-install a fresh Windows, all you need to do is boot the PC from the Windows installation media and it will allow you format partitions, delete them, or create them, all without typing commands. You just choose from the options on-screen.

There's been no need to manually enter the 'format' command for years.

Even if you boot from a partition management utility disc, formatting involves nothing more than a couple of mouse clicks.

You're using "old school" methods, nothing wrong with doing that if you cut your teeth on DOS & understand the commands - - but you don't.

message edited by phil22

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December 29, 2016 at 01:09:30
Yeah, you're doing everything wrong. If you're using an actual dos floppy bootdisk it won't format or even recognize an ntfs partition. Dos FORMAT only works with FAT partitions or FAT32 if you're using windows 9x dos. If for some reason you're wanting to replace the ntfs partition with a fat partition you need to run FDISK first and remove the non-dos partition. Then save changes, reboot and run fdisk again to create the fat partition. Then format. Also for a large drive, dos may not recognize the entire space. So, ya know, don't do any of that unless you're absolutely sure it's what you want.

If you're getting a 'bad command or file name' error (I don't think there's a 'wrong command' error) it means the format command isn't on the disk you're booting from.

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December 29, 2016 at 09:28:09
The format of DOS commands has to be "exactly" right. A near miss will not work. Note the difference between what you put in and what was given in response #2.

Always pop back and let us know the outcome - thanks

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