Caution To use DOS commands

Are you dazzled by the introduction of so many orders? The key to learning DOS is to practice all kinds of commands, but I have to give you a wake-up call, some orders to be careful, otherwise too late.

Del *.* Delete all files in current directory

[Recommended] The use of Del *.* in the C-packing directory will make the computer can not find the mouse, optical drive, can not use Windows, or even start. In fact, using this command in any directory requires good consideration.

deltree *.* Delete all directories and files under current directory

[Recommended] Use this command in the C-packing directory, and you have to make sure your mind is clear, and you are sure that it is necessary, but we do not believe that this command should be used in any way. Using deltree *.* In any directory produces the same or worse results as Del *.*. Beware of it! Beware of it!

Format c:/u formatted c disk

[Suggest] unless your hard drive is infected with a virus, or if a real computer expert tells you to do so, do not format the C disk, which will cause you to lose all information and take several hours to reinstall all the software.

Fdisk hard disk Partitions

[Suggest] when the hard disk partitions, must let a person who has used this command to help you use, otherwise you will lose all information, even the hard disk can not use.

Recover Overwrite Disk

[Recommended] After DOS 6 no longer has this command, if you are using the old version of DOS, advised you not to use it at any time, it has nothing to do but to destroy all the information on your hard drive has no other role.