Win8 is installed with win7 and restarted as required, but it s gone before it is finished

Pre-installed Win8 is GPT hard disk plus EFI boot.

Win7 uses MBR hard disk plus traditional BIOS boot.

To install Win7 under GPT hard disk + EFI, you need to press F12 in the boot menu to select EFI under the optical drive to boot, it is best to disable LegacyBIOS in the BIOS of F2, only use UEFI mode, and then boot boot to the optical drive and install it.

Or, if the BIOS is only EFI shell, go to the EFI shell, then use the command "fs0:" or "fs1:" to enter each disk, then use the dir command to view the current directory structure, find the optical drive, and use the "cd filename" to enter the boot folder.

Then find the file and open the file to install it normally.

If you don't understand, you can go online to study the difference between UEFI and traditional BIOS, or directly inquire how to install Win7 under UEFI.

I guess you're also because it's a new computer.,Now most of the computers pre-installed with win8 can't be used.,Because the format of GPT is used.,To install win7.。

The first method.

1. Repartition the entire hard disk into MBR format (this will cause all data to be lost) 2. Install win7

The second method.

1. Format a drive letter you want to install as an MSR partition.

2. Install Win7 x64 (only 64-bit can use GPT hard disk partition), 3. Adjust the boot mode, that is, UEFI (a new boot format).

Refer to this, and set it up.

All should be installed in the C drive, the old garbage needs to be cleaned up by disk in the C drive, and the disk cleanup is carried out after scanning.

If you need to add the boot item of win7, you can use the software ntboot autofix, the specific method is as follows:

3. Press the number key 1 to start the automatic repair;

4. Wait for the exit option to appear after completion, press the number key 2 to exit and restart.

Use the menu recovery software (ntbootautofix, "Start recovery", and the recovery is done.

Then use the menu software (easyBCD), select the bootstrap menu, and click on the menu.

Bootstrap repair, see how much you can do with the system, I won't say much, I don't understand what I'm asking.

Here's how to reinstall the system:

1.Put it into the system disc and the following installation ghost win7 system menu appears, press "1" to select the installation system to the first partition of the hard disk.

2.It will automatically enter the copy system process, which takes about 3-6 minutes, depending on the computer configuration3After the copy system is completed, it will be automatically restarted and the installation auto-detection process will begin4Automatically searching for system drivers to be installed.

5.The system is automatically installed, and this process takes about 5-8 minutes, depending on the computer configuration6Automatically activating windows7 ultimate version,Enter the system and it's already activated,It will automatically restart after the installation is completed,At this point,Install ghost win7 system from CD ends!

Can you be clearer? If you want to reinstall, find a suitable system disc to insert, and then follow the prompts to install it when you boot it. However, I suggest that you better find a friend who understands the system to help you.

If it's Lenovo's notebook, you can restore it with one click,There's that special key,If it's another machine that wants to reinstall, you have to find the system installation disk,Now there are a lot of pirated versions,Put the disk in the optical drive,Press F12 when you boot up,Select the first item,Then follow the prompts to install it,Finally, don't forget to find an activation tool to activate it。

You can restore the system without reinstalling. Start menu--- all programs--- attachments--- system tools to find a problem, the previous date of system restore, before the restore close the antivirus software is better to remove, otherwise the restore is not successful, you will not be able to find that date in the restoration.

If you don't have important information, you can go to a computer store and buy a pirated CD and install it, ten yuan a piece, which is very cheap. It's better to have your own genuine system. Try to dress yourself, and you don't have to ask for help later.

For novices, spend 5 yuan to buy a ghost disk, and you won't talk too much.

It's very simple, it's pretty much the same as installing XP, there's no big difference.

The system boot disk is in and you can fix it.