1. Insert your Windows 7 DVD in the optical (CD/DVD) drive. Click Install Now option once you see the screen. If you have disabled autorun, open the root of the DVD drive (Windows 7 DVD) and run setup.exe file.

2.  Once you run the setup, you will see two options:

* Check compatibility online

* Install Now

3. In the next screen, you will see two options:

* Go online to get the latest update for installation

* Do not get the latest updates for installation

If you have the latest version of Windows 7, then you need not to check for updates. You can select Do not check for updates if you wish to check for updates post upgrade process.

4. Accept the license agreement (I accept the license agreement) and click Next to continue the procedure.

5. In the next screen again you will see two options:

* Upgrade

* Custom

Here you need to select Upgrade option to upgrade from Windows Vista to Windows 7. Click Next.

6. Once again, Windows will check for the compatibility and will generate the report. If Windows finds any compatibility problems, it will display the problem and will save the report to the desktop. If no incompatibilities are found, Windows 7 Setup will proceed without further interaction

From here onwards, you need to follow the default Windows Installation Procedure

Note

If you're running a 32-bit version of Windows Vista, you can only upgrade to a 32-bit version of Windows 7. Similarly, if you are running a 64-bit version of Windows Vista, you can only upgrade to a 64-bit version of Windows 7. Otherwise, you'll need to use the Custom option to install Windows 7.

Both 32-bit and 64-bit installation discs are included in the Windows 7 package. 64-bit operating systems can handle large amounts of memory—typically 4 gigabytes (GB) of random access memory (RAM) or more—more efficiently than 32-bit operating systems. However, not all computers are 64-bit capable.

To find out which Windows 7 installation disc you can use, do the following:

Hope this help