There are five things you must pay attention to when installing the WIN7 system.

Now that you have downloaded the ISO image and burned it to DVD, you have two options to run the installer. The performance of the Windows Installer depends on which method you choose. If your system already has Windows XP, Vista, or an earlier version installed, you can launch the installer from the Windows operating system. Alternatively, you can boot the system from the installation media. Either way, you will see a dialog box.

First, selecting an installation method

Now that you have downloaded the ISO image and burn it to DVD. Then you have two choices to run the installer. The performance of the Windows Installer depends on which method you choose. If your system already has Windows XP, Vista, or an earlier version installed, you can launch the installer from the Windows operating system. Alternatively, you can boot the system from the installation media. Either way, you will see a dialog box.

difference? If you run the installer in Windows.

1, can not run 64-bit installer is running the x86 version of Windows.

2, the existing installation Windows7 and Windows versions of the same volume.

3, must use existing partitions, can not be changed, the installer does not recognize unallocated space.

Windows7 If you start from the DVD:

1, can not upgrade an existing version of Windows, only a custom installation.

2, you can delete existing partitions, create new partitions, extend an existing partition, or specify an unallocated space as the installation location.

3, install Windows7 and existing Windows versions of the same volume.

Furthermore, starting the installation program in Windows, can be selected to run on existing inspection system compatibility.

Second, how to install a new

If you plan to do a clean install, it is recommended that you back up, and then start the installation program from Windows7DVD, remove any existing partitions. Because this will save you time and reduce some trouble. Now assume that you have already made a backup. Because all the data will disappear, so be sure to save it before you start.

a new installation, a total of four steps:

1, from WindowsDVD start the program, follow the prompts to choose a Custom (advanced) installation, and then click Next to enter the picture;

2, click drive options (advanced) to display all the available disk management tools;

3, select from a list of partition, and then click delete