How to install dual system

Scenario 1 Traditional dual system solution ——Install XP under Win7

I believe many users who bought a new computer are pre-installed Win7 operating system, but also Need to use XP system. Therefore, you need to install XP in Win7.

Method 1 New installation with XP installation CD

First, you need to prepare a primary partition for installing XP system. It is recommended to use the disk manager to create a primary partition with a capacity of at least 10 GB in Win7 system (as shown in Figure 1). Then use the Win XP installation CD to start the computer and install it. The installation method is similar to installing XP system.

Need to pay attention to the problem:

1. Since Win7 has occupied two partitions by default (100MB hidden system reserved partition and system partition), for this reason, when selecting the installation location, Please select the partition according to the actual situation (as shown in Figure 2).

2. Since the partition was created in Win7, the XP installer does not recognize it, so you need to format it again in the next step.

After the installation is complete, you will only be able to enter the XP system, and further manual configuration is required to restore the boot menu.

Start the computer with the Win7 installation CD. When you go to the “Install Now” step, select “Repair your computer” until the “System Recovery Options” menu appears (as shown in Figure 3). .

Select “command prompt”, then enter the following commands in the pop-up command prompt window (enter one entry per click, if the screen returns “ the operation completed successfully) , continue to enter the next command, otherwise please check if the input is correct and re-enter):

bcdedit /create {ntldr} -d "Windows XP"

bcdedit /set {ntldr} device partition=D:

bcdedit /set {ntldr} path ntldr

bcdedit /displayorder {ntldr} /addlast

Restart all computers after running the command. The boot menu will appear (Note: where “D:” is the partition where XP is located, please modify it according to the actual situation).

Method 2 Installation with Ghost Image

I believe many users have the habit of making Ghost image CDs for backup and system installation. Relative to the use of XP installation CD to install, use XP Ghost image file to install, it is simpler. Just configure the boot menu after restoring the XP system.

As with the above method, first prepare a primary partition for restoring XP under Win7. Then start the computer with the appropriate tool CD and restore the XP Ghost image file to the primary partition you just prepared.

After the completion, there is no startup menu, only to start under Win7. It doesn't matter, after entering Win7 as a system administrator, copy the three files (all in the root directory of XP) of Win7 to the XP partitions, "ldld;", "ld.ini", "“boot.ini", and "NTDETECT.COM". In the partition. Then run the command prompt and enter the four commands above.

Summary: Install XP in Win7, giving people the deepest feeling is "reverse behavior", the difficulty of installation is relatively high, so it is recommended that ordinary users install under the guidance of a certain computer-based user. In addition, the text can not list all possible situations, but for some occasional some inexplicable errors (such as Win7 can not start, etc.), you can generally use the Win7 installation CD to repair.

Scenario 2 Traditional dual system solution ——Install Win7 under XP

I believe many users have the same loyalty to XP as the author, but the new features of Win7 are equally attractive. Therefore, installing Win7 in XP naturally becomes a choice for many people. Relatively speaking, installing Win7 in XP is the easiest.

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