What should you pay attention to when replacing win10 with win7?

When we use computers with the win10 operating system installed, our friends want to update the win10 operating system because of notifications from Microsoft. So regarding the question of what should be paid attention to when changing from win7 to win10, the editor thinks that first of all, we need to make a backup of the system, and secondly, prepare the software, systems, etc. that we need to upgrade the system. Let’s take a look at what the editor did for the specific content~

What should you pay attention to when changing win7 to win10

1. BIOS setting issues

1. BIOS is divided into two types: old and new, UEFI and Legacy. It is recommended to choose the new version of UEFI because it has more advantages. Just select it after the Boot Mode option in the picture below.

2. It should be noted that UEFI and Legacy are two different boot modes.

3. For systems installed in UEFI boot mode, Boot Mode can only select UEFI.

4. It cannot be modified to Legacy. If you change it, the system will not start normally. Of course, don't worry, just change it back.

5. The same applies to systems installed in Legacy boot mode. When you need to pay attention,

6. The partition format corresponding to uefi is gpt, and the partition format corresponding to legacy is mbr.

7. We must pay attention to uefi gpt or legacy mbr when installing. Otherwise, you will not be able to enter the system normally after installation.

2. What to do if the U disk option cannot be found in EFI mode

1. To reinstall the system from the U disk, you need to start USB boot, that is, USB Boot The options after are changed to Enable.

2. At this point you may find that there is no USB option in the EFI directory below.

3. You may be stuck here. In fact, it is very simple. You only need to save the existing settings and restart the computer.

4. Re-enter the BIOS and you will see the USB option. . Then move the USB option to the top, save and restart, so that you can enter the system reinstallation interface.

3. Do you need to format the C drive when reinstalling the system?

1. In the win10 era, you do not need to format the C drive when reinstalling the system because of the upgrade. The installation preserves current application and settings files.

2. During upgrade installation, if the system detects that the remaining space is insufficient for upgrade installation,

the system will prompt you to insert an external storage device to make up for the insufficient space. Or clear the C drive to free up space.

3. I think this situation is something you don’t want to see, so the editor recommends that you

allocate at least 25G of free space to the C drive before reinstalling to avoid this situation. happened.

4. Custom installation, also known as a new installation, means reinstalling another system on your computer.

5. You can choose the installation location by yourself. To avoid trouble, it is better to separate a separate partition specifically for installing the system. The available capacity is recommended to be 25G or more.

#6. Don’t format the original C drive yet, because if you don’t like the new system, you can still return it.

7. If you have not formatted the old system, your computer should be a dual system at this time.

8. You can enter the old system by modifying the order of the boot files under EFI in the BIOS, thereby returning to the old system.

(I think you are unlikely to encounter this situation, so I won’t give any additional explanation)

4. After the installation is completed BIOS settings

1. After the new system installation is completed, you need to turn off USB Boot, that is, change the option after USB Boot to Disabled.

2. In EFI, the USB option also needs to be moved to the bottom. In this way, you will not make any mistakes or enter the system installation interface again after restarting the system.

5. Precautions for reinstalling new models

1. Things to pay attention to when reinstalling the system on the new Intel 6th generation CPU that has been released in recent years ,

2. Intel CPUs of 6th generation or above cannot directly install win7. Some machines need to turn off safe boot and enable compatibility mode.

3. Although these have been changed, you must also pay attention to intel When reinstalling Win7 system on CPUs of 6th generation or above, the USB keyboard and mouse cannot be used.

4. You need to install it on a new Win7 model. Of course, some Intel CPUs of 8th generation and above cannot even install Win7.

5. Because the usb3.0 driver has not been released, it is recommended not to reinstall the system win7 for Intel 8th generation or above CPUs.

6. In addition, if you really want to install it, you can buy a pci-e to USB converter. equipment, but it will sacrifice the USB3.0 interface that comes with the motherboard,

7, so it is still recommended to install win10 directly. Also note that some machines have nvme solid state drives,

8. Therefore, win7 cannot be installed directly. You must use a U disk that can be injected into the nvme solid state drive driver to boot,

9. If you just reinstall the system win7, a blue screen of 0x000007b will appear.

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