Method 2 Upgrading to Windows 7

1 Start your computer. Boot up your computer as normally into your current operating system.

2 Check to see if your computer is compatible with Windows 7. Windows 7 Upgrade Advisor scans your computer to see if you can upgrade it to Windows 7. You can download it from here.

To upgrade to Windows 7, you must upgrade to the same version of Windows that you already have. For example, if you have Windows Vista Home Edition, you can only upgrade to Windows 7 Home Edition. You cannot upgrade from Windows Vista Home to Windows 7 Premium

3 Prepare your computer to install Windows. Use the following steps to prepare your computer for a Windows installation:

back up your files. It is a good idea to backup any files you want to keep in case of an issue during the upgrade. You can backup your files using another hard drive, external hard drive, flash drive or cloud service such as Google Drive or Dropbox.
Scan your computer for malware. Malware can prevent Windows from being installed correctly.
Disable or uninstall any antivirus software as they may interfere with Windows installation.
Uninstall some unnecessary programs to speed the upgrade. You can install them after Windows 7 is finished.
Update Windows with Windows Update.
Remove some unnecessary files to speed the upgrade.

Back up your hard drive if the installation fails and your files are lost. (Alternative)..

4 Insert your Windows 7 installation disc. Eject the tray of your CD/DVD drive and place the Windows installation disk into the disk drive and then close it.

5 Click on the Windows Start menu. By default, this is the icon with the Windows logo in the lower-left corner

.Alternatively, you can boot your computer from the disk mentioned in method 1 and select Update from the installation screen

6 Click My Computer. This is displays all drives on your computer.

If you are using a newer version of Windows, click Windows Explorer. It has an icon that looks like a folder with a blue clip. Then click on the name of this PC or your computer.

7 Double-click the disc drive with the installation disk. This displays the contents of the disk. Allow Setup to start.

8 Click Setup.exe. This launches the Windows 7 installation program

9 Click Install Now. It’s the blue button in the center of the screen

10 Decide whether to install the update for Windows Setup. The purpose of the updates is to fix known issues with Windows Setup and installing updates makes your installation more stable. To get the update, click Go Online (recommended) to get the latest updates for the installation. To skip the updates, click Do not receive the latest updates for the installation.

11 Accept the License Terms. Read over the Microsoft Software License Terms, and click the checkbox next to “I accept the license terms”. Then click Next.