Replace win10 with win7

1. Download and reinstall the system with one click. It is recommended to use Iyou system. The Iyou system has been optimized to improve both security and speed.

2. Production U disk boot disk, the recommended software here is IT Sky’s Youqitong

3. BIOS settings

Note: If there are the following options, It needs to be modified, if not, skip it

1) Change Secure Boot to Disabled, disable secure boot

2) Change CSM to Enable or Yes, indicating compatibility

3) Change Boot mode or UEFI mode to Legacy, indicating the traditional startup method

4) Change OS Optimized Defaults to Disabled or Other OS, disable the default system priority settings

5) Some models require BIOS settings The password can be modified in Secure Boot. Find Set Supervisor Password to set the password.

After completing the above modifications, press F10 to save and exit.

4. Enter PE to modify the hard disk format and reinstall.

Restart When the computer is turned on, keep pressing the USB boot shortcut key to select USB boot. Go to Youqitong and select [02] Windows 10PE x64 (new model) to enter the PE system.

Enter PE and select the DG hard disk partition

5. Click to delete the partition and save

6 . Click the hard disk in the upper left corner and select Convert Partition Type to MBR format

7. Click Quick Partition and select the number of partitions you need and the drive letter size. Primary partition is recommended. Above 20GB, keep enough space

##8. Once completed, you can install the WIN7 system. Click System Installation

9. Next, perform the system installation. Then select the software and drive letter and click one-click recovery to automatically perform the system installation.

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