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How to reinstall the win7 system?UEFA TV Windows 7 is one of Microsoft's most popular operating systems, but over time, it may become slow or have other problems.If your computer has been running for a while and starts to have problems, the best way is to reinstall the Windows 7 operating system. The following are the steps on how to reinstall on the win7 system. Note: Before reinstalling the Windows 7 operating system, please make sure that you have backed up all personal files, including photos, videos, music and other important files. Please remember that all data will be cleared during reinstalling the operating system, so important files must be backed up before reinstalling the operating system. After backing up important files, you also need to make sure that you have a Windows 7 installation disc or USB drive. If you don't have these things, you can download the Windows 7 ISO file from Microsoft's website and burn it to a CD or make it into a boot USB drive.Step 1: Backup data Before reinstalling the operating system, please make sure that you have backed up all important personal files. If you don't know how to back up files, you can use the backup and restore functions of Windows 7. 1.1 First, connect an external hard disk or USB drive to save the backup file. 1.2 In Windows 7, click the "Start" button, search for "Backup and Restore", and open its control panel. 1.3 In the Backup and Restore Control Panel, click "Set Backup". Select the location of the data file and folder you want to back up, and then click the "Next" button. 1.4 On the next screen, make sure that the external backup media is selected, and then click the "Next" button. 1.5 Finally, click the "Start Backup" button, and your file will be saved to the location you choose.Step 2: Prepare a Windows 7 installation disc or USB drive 2.1 Microsoft allows users to download Windows 7 ISO files from the official website. You can download the suitable version according to the requirements of your computer system. ( Windows 7 has a variety of versions such as home version and ultimate version) 2.2 After the download is completed, burn the ISO file to the CD or make a boot USB drive. 2.3 If you need to make a boot USB drive, please download the Windows 7 USB/DVD download tool and follow the instructions. Step 3: Reinstall the Windows 7 installation disk and backup data are ready, and now you can start reinstalling the Windows 7 operating system. Before you start, be sure to connect your computer to the Internet.3.1 Insert the Windows 7 CD or USB drive and restart the computer. 3.2 During the boot process, follow the screen prompts on the boot disk and select options such as language, time and currency format, keyboard or input method. Click the "Next" button. 3.3 Click the "Install Now" button to start the installation program. 3.4 On the next screen, you need to agree to the license terms. After reading, please check "I accept the license terms" and click the "Next" button. 3.5 On the next screen, select the "Custom (Advanced)" installation option. 3.6 If you have multiple partitions, please select all partitions and click the "Drive Options (Advanced)" button. 3.7 Below, select all partitions (including system reserved partitions), and then click the "Delete" button.3.8 Select all unpartitioned spaces, and then click "New" to create a new partition to reinstall the Windows 7 operating system. This should be the size of unallocated space minus 100MB. The partition you choose should be the main partition and set as the active partition. Click "Apply". 3.9 Your new space should now be the main partition and has been set as an active partition. Select it and click the "Next" button to start installing the Windows 7 operating system. 3.10 On the next few screens, you need to select the language and region settings of your computer, select a computer name, enter your username and password, and select network settings and other information. 3.11 Finally, click the "Finish" button, all settings will take effect, and the Windows 7 operating system will start to install.3.12 During the installation process, please do not disconnect the power supply or interrupt the installation process, which will cause your data loss and damage to the system. Step 4: Restore data After reinstalling Windows 7, please run the backup and restore wizard. After finding your backup and restoring all the data, you can start using the new Windows 7 system. In summary, by backing up important data and following the above steps, you can easily reinstall the Windows 7 system, and your computer will start to run faster. It is easy to reinstall the Windows 7 system. As long as you follow these steps, you will not lose any data.

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