How to format the operating system, when two operating systems are installed, how can the C disk be

1. Set up the first step in the BIOS: boot from the optical drive, insert the system disk, there will be a built-in format tool;

2. After entering the DOS, enter Format C Q to quickly format the C drive;

It is recommended that you make a ghost backup after redoing the system, which is more convenient to use in the future. About the ghost backup, knowing that there is in it, I have passed.

Prerequisite: The user has a win98 installation CD and a boot floppy disk) 1) Insert the win98 boot disk into the floppy drive to boot up;

2) Type "format, space c:", enter, prompted: "y", under the a: drive letter, type: "y", enter;

3) After formatting, type "D:" under the A: drive letter;

4) Type "e:", type "dir" enter; Find the win98 installation directory pwin98 and type "cd space pwin98" enter; Type "setup" enter;

5) Keep clicking "Next" to complete the installation.

6) After entering win98 for the first time, install each hardware driver (such as sound card, graphics card, etc.).

XP is the same, it is also possible to boot with a disc (but the disc must have a boot function).

Boot up the computer programming disc and put the new system installation disc into the CD-ROM drive.

Follow the steps introduced above and you're good to go.

1.From pure dos rigg.

2.Rig from other systems.

Won't you be able to use it after formatting?

What's the point?

If you reinstall the system.

From the dos lattice.

Analysis: You may have deleted the original operating system that is not easy to use, but it may be that after the format is completed, there are "Windows", "Winnt" and other Windows installation directories in the drive letter of your computer in addition to the C drive, so Windows will recognize that you have installed multiple systems on your machine, but there are more boot options in the boot item in your computer.

Processing: Right-click on My Computer -> Properties -> Advanced -> "Settings" in "Startup & Failback".

This opens the "Boot and Failback" dialog, if you can enter the first system normally, then select the first system in the default system, otherwise select the second system, and then cancel the "Show operating system time list" before it.

3 Find the hidden file of the system boot (usually C drive), open it with Notepad, delete the unwanted ones in the order that appears when you boot up, "defualt=" set to the remaining one, save, and restart.

Go inside and delete another bad system option on it.

You still have a system that shouldn't be installed on the C drive.

Put the system on a different disk and discard the C drive!

The command to run the installer under DOS requires the DOS command.

When the installation screen appears, it's time for menu operation.

If you are not very familiar with dos commands.

Boot the system directly with a disc, and the installation screen will appear.

Similarly, the same system disk can also be formatted, and it can be achieved without DOS.

Assembly language and C language, C language accounts for more than 90%.

Windows is in C and a small amount of C++ and assembly, most of which are C, and the wrong people write machine language.

Go to the control panel and click [Change Display Language] in the dialog box that pops up.

Click the Administration tab, and then under Languages for Non-Unicode Programs, click Change System Locale.

The definition of system software on Wikipeida - old leakage system software mainly refers to software set up by hardware or developers, such as operating systems, interpretation systems, compilation systems, database management systems, middleware, etc.

The interpretation system and compilation system are the branches of the language processing system, and it is more appropriate to fill in (develop) the circle system in parentheses.

The core part of Apple's Mac OS operating system is Darwin, which is a Unix-like operating system based on BSD, and the main languages used are assembly language, C language and C++, assembly language is basically an indispensable part of all operating system writing.

Written in C.

Almost all operating systems (such as Windows, Linux, UNIX, etc.) kernels are programmed in C, because C is a high-level language close to the bottom level, which runs relatively fast, of course, some operating systems will also embed some assembly language, most of Microsoft's systems use assembly, C language, and sometimes C++

In the Windows NT series of Windows operating systems, the core part uses C language, and a small part is assembly language. C++ is used for the graphics processing part.

It may be C, but Apple uses Object C for development

C The operating system kernel is generally written in C.