Windows 7 various installation methods advantages and disadvantages evaluation

Windows 7 installation methods can be divided into: CD installation method, analog CD-ROM installation method, hard disk installation method, USB disk installation method, software boot installation method, VHD installation method. Different methods have their own advantages and disadvantages. Before installing the system, it is important to prepare the necessary emergency disk and backup of the old system. In case of installation problems, it will not be caught off guard. The following is detailed as follows: First, the CD installation method: Brief description: CD installation method can be regarded as the most classic, best compatibility, the most simple and easy to learn installation method. Upgradeable installation, or new installation (optional formatting of the old system partition during installation), flexible installation. Flexible to install 32/64-bit systems without the limitations of the old system. Method: 1. Download the ISO file of the relevant system installation disk and reserve it. (There are discs that can be omitted.) 2. Boot into the BIOS (General hardware self-test, press DEL or F2 or F1 key to enter, different computer settings are different), set to drive the CD-ROM priority. Press F10 to save and exit. 3. Put in the CD, restart the computer, and boot the CD into the installation interface. Install by the appropriate options. When you choose to install a hard disk partition location, you can select a blank partition or an existing partition and format the partition. Others are not detailed. Disadvantages: In the case of the WIN7 test version, this disc installation is undoubtedly the most extravagant, wasteful, and least environmentally friendly method. It is recommended only if it is not available or is not suitable for other installation methods. Second, the analog optical drive installation method: (Unexpected circumstances may not be installed successfully) Description: Analog optical drive installation method is the simplest to install, fast installation, but more restrictions, recommended for multi-system installation. Method: Load the ISO file of the system with the analog CD-ROM program under the existing system, run the installation program of the analog CD-ROM drive, enter the installation interface, and leave enough space for the C-disk during the upgrade installation. Multi-system installations preferably install the new system to a new, blank partition. Disadvantages: 1. Since the existing system disk cannot be formatted during installation, it is impossible to implement a single system clean installation. Because the old system files take up space, it also wastes disk space. Have an old operating system. 2. Because the old system partition cannot be formatted, residual virus files may compromise the security of the new system. 3. The old 32-bit system cannot install a 64-bit system, and the old 64-bit system cannot install a 32-bit system. Third, the hard disk installation method: (Under certain circumstances may not be installed successfully) Hard disk installation method can be divided into two types: 1, the simplest hard disk installation method: extract the system ISO file to other partitions, run the SETUP.EXE file under the decompression directory , follow the corresponding steps, no longer detailed. This method has the same limitations and disadvantages as the analog optical drive installation method. It is also impossible to format old systems and 32/64-bit different systems cannot be mixed. Recommended for multi-system installations. 2, the classic hard disk installation method: (similar to the PE boot principle) Brief description: the installation is relatively cumbersome, the installation speed is faster, can achieve a clean installation, and the difference with the method 1 is that the old system files will not remain, but the same 32 /64-bit different systems cannot be mixed. Method: Decompress the system image ISO file to other partitions. According to the old system, it is divided into the installation of XP system and the installation of VISTA and above. 1, XP and the following system installation, copy the installation directory to the root directory of the C drive: BOOTMGR, BOOT, EFI two folders, BOOT.WIM under SOURCES (located in the C disk SOURCES directory), run the following command: C :\\bootbootsect /nt60 C: Restart the computer to boot into the WIN7 computer repair mode, select the DOS prompt, delete all the files under the C drive, run SETUP under the installation directory to install. 2, VISTA above system installation, do not have to copy the above files, directly reboot into the computer repair mode, select the DOS prompt, delete all files under the C drive, run SETUP under the installation directory to install. Disadvantages: 1, 32/64 bit different systems can not be mixed, because the SETUP and BOOTSECT programs with different bit widths can not run in the ectopic environment. 2. An abnormal interruption in the installation process will result in the system failing to boot. So be sure to reserve an emergency disk.