How to downgrade win7 system from pre-installed win10? Many users and friends are tired of the pre-installed win10 system on their laptops and want to convert it to win7 system, but they have not been able to successfully convert it, and they do not understand what the problem is, so today Quickly start the editor to share the detailed pre-installed win10 downgrade win7 system tutorial for you, dedicated to the confused friends.
Preliminary description:
1. If the pre-installed win10 downgrade win7 system is going to be in UEFI+GPT mode, there is no need to modify the BIOS startup and hard disk partition table, but you need to modify the system lock part in the BIOS and download the win7 64-bit system.
2. If the pre-installed win10 is downgraded to win7, if you plan to be in Legacy+MBR mode, you need to change the BIOS, the system lock part in the BIOS and the hard disk partition table.
3. Modifying the system will format the system disk data. If you modify the hard disk partition table, it will format all the data in the hard disk. Remember to back it up as needed.
Ready to work:
1. Download the U Disk Boot Disk Creation Tool and make it into a Quick Start U Disk Boot Disk (U Disk Boot Disk Making Tutorial).
2. Download the win7 system to the quick start U disk boot disk.
Set the U disk to boot:
1. Since the pre-installed win10 system bios will lock the system, we must change secure boot to Disabled, Launch CSM to enabled, OS Optimized Defaults to Disabled or Other OS, see the tutorial for details: How to change win10 system to win7 to set bios
2. Insert the fast boot U disk boot disk into the computer, after modifying the bios, press the laptop startup shortcut key f12 to enter the boot menu interface, move the cursor to the usb option through the arrow keys on the keyboard, and press the Enter key to successfully set u The disk is the first boot item and directly enters the fast boot win10pe system.
Laptop pre-installed Win10 downgrade Win7 system steps:
1. After selecting the u disk to boot, enter the fast boot pe system desktop. If you plan to re-partition or convert the hard disk partition format, you can click the DiskGenius tool in the common tools. If you don’t plan, you can directly select the win7 image in the pop-up quick-boot installation tool. And the installed system drive letter, such as the C drive, then click one-click installation, and then just wait for the installation, as shown in the following figure:
2. Then the system prompts to restart, click OK to remove the U disk, restart the system to start the installation, we do not need to do any operations, just wait for the installation to complete.
At this point, the tutorial of pre-installing Win10 and downgrading Win7 system is over for everyone. It is inevitable that the system will be unsuccessful. Because you need to pay attention to many details in peacetime, you must understand the setting skills clearly. Questions please help to start customer service quickly, I hope to help everyone.