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Win7 and Casino PlusWin8 dual system installation tutorialWith the progress of the times and the continuous improvement of technology, more and more people have begun to use computers, and the operating system of computers is also constantly updated. Recently, Win7 and Win8 are more popular. So how to install dual systems on computers? Next, I will introduce the installation tutorials of Win7 and Win8 dual systems in detail. 1. Backup data must be backed up important data before installation, in case of data loss when formatting the hard disk and reinstalling the operating system by mistake. Backup can copy important data to USB flash drives, external hard disks, CD-ROMs and other storage devices, or some backup software can be used for backup. Two. Prepare the USB boot disk and the Windows installation mirror image. First, we need to prepare a USB boot disk, and the Windows system that needs to be installedAfter decompressing the mirror file, it is placed in the USB flash drive. Many common tools can be used to make the USB boot disk, such as UltraISO, Quick Disk, Rufus, etc. If you don't know how to make a USB boot disk, you can search for relevant tutorials on the Internet. 3. Restart the computer and enter the BIOS. When the computer is started, press F2, F8, Delete, Esc and other keys to enter the BIOS setting interface, select the Boot startup item, set the first boot device to the USB boot disk, save the settings and exit the BIOS settings. Four. When you start the installation, you can install it. When installing, we need to choose an empty hard disk partition to install. It is best to format the hard disk partition with DOS so that the operation can be smoother when installing the system. Comply withSince there is already an operating system, we need to shrink the partition disk it occupies to leave space to install the new system. The steps are as follows: 1 Open "Disk Management" (through "Control Panel", then find "System Maintenance" and select "Manage Disk"). 2 Right-click to select the partition that needs to be reduced, and select "Reduce Volume". 3 Reduce the space occupied by the hard disk as needed. If you want to separate part of the original partition as the partition of the new system, reduce the required space to the available size of the original partition (retain more than 200G of space). 4 Format the new partition to NTFS (it can be formatted after selecting the new hard disk partition). 5. After installing the dual system and completing the above operations, restart the computer, install the system with a CD-ROM or USB flash drive, and select the newly created free partition to install.When installing, it should be noted that you should choose custom installation instead of quick installation, so as to avoid the new system overwriting the old system, resulting in data loss. After installation, you can freely choose to use these two systems. The above is the installation tutorial of Win7 and Win8 dual systems. I believe everyone should have gained something after reading it. However, when using computers, we should still pay attention to protecting our data and computers against virus attacks.

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