Dell Vsotro 14 3000 series re-installed from Win10 win7

1. F2 boot into the new BIOS interface, first disable Secure Boot, and then change the UEFI to legeacy mode, of course, is not changed back, do not know why;

2. Insert USB stick (old peaches +uefi boot image);

3. Press F12 to select USB boot;

4. Launch into WinPE and use Diskgenius to erase ESP and MRB and other disks

5. Right-click the hard drive to MBR mode, then automatically partition

6. Install the Win7 and the installation is complete.

Dell Vsotro 14 3000 series re-installed from Win10 win7