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What is a floppy disk:

In a computer system, the speed of hardware operation is basically determined by the cache. The larger the cache capacity, the faster the corresponding hardware runs. The application of cache covers almost all hardware, such as CPU, hard disk, burner and so on. Even software has a cache. What is caching? Simply put, cache is a buffer for data exchange (called cache). When a hardware wants to read data, it will first look for the needed data from the cache, if it finds it, it will execute it directly, if it can't find it, it will look for it from the memory. Because cache runs much faster than memory, the role of cache is to help hardware run faster. So do everything possible to increase the hardware cache and let the machine "fly". Here are several ways to increase the cache. ?

CPU cache?

The cache of CPU is divided into two levels: L 1 (first-level cache) and L2 (second-level cache). When a processor wants to read data, it should first look in the L 1 cache, then the L2 cache, and finally the system memory. If one day you find that your computer is much slower, it will take several minutes to enter the Windows desktop. At this time, it is necessary to check whether the first-level and second-level caches of CPU are open. There are two standard CMOS settings in BIOS settings, which are used to open or close the cache: when CPUInternal Cache is set to Enable, the first-level buffer inside the CPU is opened, and when it is set to Disabl, it is closed, which greatly reduces the system performance; The ExternalCache option controls the secondary buffer on the motherboard. If there is a secondary buffer on the motherboard, it should be set to Enable. ?

Hard disk cache?

Click "Start"/"Run" on the computer desktop, type "Msconfig" to start the "System Configuration Utility", and then select the "Vcache" item under the "system.ini" tab to adjust the hard disk cache according to the actual situation of the system. This option generally has three lines: chunk size = 1024, max file cache = 10240, min file cache =10240; The first line is the value of the buffer read-write unit, the second and third lines are the maximum and minimum buffer value of the hard disk, and the value after the equal sign can be modified, just right-click any line. If your memory is 128MB, the values in the above three lines are more reasonable, and you can also customize them. If you don't know how to set the appropriate buffer value, please ask the Windows Optimizer for help. There is a "disk cache optimization" item in this software, and the cache can be easily set with the mouse. Or let the Windows Optimizer automatically optimize the settings for you. When the cache value of the hard disk is large enough, the hard disk does not need to read and write frequently, which can prolong the life of the hard disk and improve the data transmission speed. ?

In addition, setting the "file system cache" of the hard disk to "network server" can speed up the system's access to the hard disk, because the file system cache stores the file name and path of the recently accessed hard disk, and the larger the cache, the more content it can store. If you click Control Panel/System/Performance/File System/Hard Disk and change the main purpose of this computer from desktop to network server, the original cache of 10K can be increased to 50K. ?

Cache of floppy drive and optical drive?

Generally speaking, the speed of reading and writing data by floppy drive is relatively slow, because the rotation speed of the disk cannot be too high. But we can improve the read-write cache of floppy drive, so that floppy drive can read and write more data at a time. The method is: type "Regedit" in the start/run box of the desktop to run the Registry Editor, then go to HKEY-local-machine \ system \ currentcontrolset \ services \ class \ FDC \ 0000, create a new "DWORD value" for ForeFifo, and set its value to "0", so the value will be changed to "0". ?

As many people know, right-clicking the desktop icon "My Computer", selecting "Properties/Performance/File System/CD", setting the best access mode to "quadruple speed or higher" and dragging the additional cache size slider to the maximum can obviously improve the disk reading speed of the optical drive. In addition to this method, we can also manually adjust two items (cache value size and prefetch file size) under HKEY-local-machine \ system \ currentcontrolset \ control \ file system \ cdfs to set the buffer value in the registry, and can modify it by right-clicking the selected item. ?

There are six ways to redo a computer system: for example, it can be divided into: optical disk method (divided into original disk and GHOST disk), U disk method, hard disk method (also called one-click restore method) or hard disk copy method, and online downloading operating system method. Now I'll introduce you to the most practical method of reinstalling the system: (This method is easy to learn,)

(1) The premise is that your computer can surf the Internet and access the system. The method is as follows: there are no "one-click restore" and "image files" on your computer. First, you download a software called ghost One-click Restore (hard disk version) on the Internet (download address: Sky Software Park), and then install this software on your computer. There is a waiting time of more than 30 seconds during installation. Then you download XP or WIN7 from a website with an operating system (download address: System House:). You can download it with thunder. Generally speaking, the downloaded operating system is an iso file. Then, use the software UltraISO to extract the WINXP or WIN7 operating system with the suffix GHO from this ISO file. After unzipping, put it in one of your drive letters (except any drive letter of drive C). Then run the GHOST one-click restore (hard disk version) software. After entering this software, at first, which "one-click restore" is gray and there is no way to click. At this time, you should pay attention to the button called "import" in the menu above. When you click "Import", a box will appear asking you to import the previously extracted "mirror image", which is defined by GHO. After finding the image, click "Open" to import the image. Which "one-button recovery" button changes from gray to clickable. When you click "one-click recovery", the computer will restart and the system will start one-click recovery. This process is fully automatic. All you have to do is watch, don't click, and then you will start reinstalling the system.

2) If your computer can't access the Internet or enter the system, you can only use CD-ROM method (divided into original disk and ghost disk), U disk method, hard disk method (also called one-click restore method) or hard disk copy method:

The method is as follows:

(1) If it is the original version, the installation method is as follows:

Step one, set the lights:?

The so-called optical startup means that the computer reads the optical drive first when it is started, so that if there is a CD with optical startup function in the optical drive, it can be read before the hard disk is started (for example, when installing the system from the CD). ?

Setting method:?

1. Start the computer, and press and hold the DEL key (some computers press F 1, F2, F4, F1,ESC, but DELETE is the most used one) until the BIOS setting window appears (usually yellow English words with blue background). ?

2. Select and enter the second item, "BIOS Settings". Find the entry or group containing the BOOT text, and find three entries "first", "secend" and "third" arranged in sequence, representing the first boot, the second boot and the third boot respectively. Here we can set it to CD-ROM drive, floppy drive and hard disk in turn. (If you don't see these three E's on this page, the option menu on the right side of the boot is usually "Settings", and you can see them by pressing Enter. You should select "the first one" and then press enter, and select CD-ROM in the submenu that comes out. Press enter again. (Some computers look for boot-boot settings-boot device priority-Enter (OK)- 1ST boot device -DVD/CD ROM- Enter (OK))

3. After selecting the startup mode, press F 10 to open the E-text dialog box, and press "Y" (which can be omitted) to enter, and the computer will automatically restart, which proves that the changed settings are effective. Step 2, install XP system from CD?

Insert the XP installation CD before restarting. When you see the word CD at the bottom of the screen, press Enter. Only when the light is turned on can the computer start reading the hard disk, which means skipping the light and starting from the hard disk. ?

After the XP system disk is opened, an installation interface with a blue background will appear. At this point, the system will automatically analyze the computer information without any operation until the display screen turns black, and then a Chinese interface with a blue background will appear. ?

At this time, the first protocol of XP system appeared. Press F8 (indicating agreement with this agreement), and you can see the information list of all partitions of the hard disk with Chinese operation instructions. Select drive C and press D to delete the partition (remember to back up the useful files of drive C first). The location of drive C becomes "unpartitioned", and then press the c key to create a partition in the original location of drive C (that is, the "unpartitioned" location). There is no need to resize the partition. After that, the position of the original C disk becomes "new unused" and press enter to continue. ?

Next, there may be a page with the option of formatting partitions. It is recommended to select "Format partitions with FAT32 (fast)". Press enter to continue. ?

The system began to format drive C, which was very fast. After formatting, the hard disk and the previous WINDOWS operating system are analyzed, which is also very fast, followed by copying files, which takes about 8 to 13 minutes (depending on the machine configuration). ?

After copying the file (100%), the system will automatically restart. When you see the CD-ROM again, you don't need to press any key to boot the system from the hard disk, because some installation files have been copied to the hard disk (note: you can't take out the CD at this time). ?

A color XP installation interface with a blue background appears, and the installation progress bar and remaining time are displayed on the left. The initial value is 39 minutes, which is also determined according to the configuration of the machine. Usually, the installation time of P4 and 2.4 machines is about 15 to 20 minutes. ?

At this point, until the installation is finished, the computer will automatically restart, and there is no need to do anything except enter the serial number and computer information (fill in at will) and press Enter for 2 or 3 times. The system will automatically complete the installation. ?

The third step is the installation of the driver?

1. After restarting, take out the CD, let the computer boot from the hard disk and enter the XP setting window. ?

2. Click Next, Skip, and select No Registration and Finish. ?

3. Enter the XP system desktop. ?

4. Right-click the desktop, select Properties, select the Display tab, click the "Customize Desktop" item, select "My Computer", and then select "OK" to exit. ?

5. Return to the desktop, right-click my computer, select Properties, select the Hardware tab, and then select Device Manager. All computer hardware has a management window, and all options with yellow question marks and exclamation marks in front represent hardware without drivers installed. Double-click to open its properties, select Reinstall the driver, put the corresponding driver CD, and select Automatic Installation. (Audio is a sound card, VGA is a graphics card, and SM is the motherboard. You need to install the motherboard driver first. If there is no SM item, installation is not required. ). After installing all drivers, restart the computer. Driver installation is complete.

(2) If it is a GHOTS version of the CD-ROM, the installation method is as follows: (computer city has bought it, 5-8 yuan has one).

The first step is the same as above, enter BLOS, set the CD-ROM drive to start,

Step 2: Put the CD into the CD-ROM drive, start the computer and enter the startup menu. All you have to do is click A, and it will be installed automatically.

The third step is to automatically install a lot of software after restarting, and then you can download and install the software you want online.

Step 4, use the one-click restore on the GHOST CD as a backup point, and it will be OK.

(3) One-click installation (this must have a spare image file or a special image file)

This means that when the computer is turned on, a startup menu appears. You can use the arrow keys to select the key to restore, and then use DELEE (OK) to display the box for restoring. At this time, if you don't move, it will be installed automatically, and then a progress bar will appear. When the progress bar reaches 100%, it is installed. Restart the computer and the operating system will be installed.

(4) Use a USB flash drive or a mobile hard disk as the startup disk to install the operating system: first learn to set BLOS as the startup item, then boot to PE, and then use the GHOST 1 1 in the USB flash drive startup disk. 2 Restore GHO to the operating system with suffix to complete the system.

How to use USB flash drive to make a system;

You just need to download a tool called "Chinese Cabbage Guide Plate Making Tool (Chinese Cabbage official website)" from the Internet. After installation, it will help you start the startup disk with a USB flash drive or a mobile hard disk, which contains PE. You can go to the next system with XP and WIN7 and mention the file of GHOSTXP (you can extract a file with the suffix GHO through a tool UltraISO). You can directly put the file names GHO of XP and WIN7 on the hard disk. When making a system, you can use a USB flash drive and a mobile hard disk to make a system. The startup screen has a WINPE and several other items, so you can make the system. ?

(5) Hard disk copy method: copy the hard disk to WINPE through serial port for GHOST. This method has a premise that the computer configuration of copying must be one-to-one, so as to ensure that the copying driver is one-to-one. Generally, this method is used in many computer places such as Internet cafes and units.