There is little need to be a "top flight" professional or constantly refer to a manual to install Windows 7. You can simply do this installation from a DVD or flash disk, which will also allow you to install Windows 7. upgrade to an older version of Windows. A "new" installation will remove all of the data stored on your hard drive, but will have the benefit of returning your computer to factory condition. However, an upgrade of your existing system will leave your data intact and the version of Windows currently running on your PC will be replaced by Windows 7. You will need to have the license key corresponding to your original installation disc or purchase a new one. news within 30 days.
Steps
Method 1 of 4: Use the Windows 7 installation DVD

Step 1. Back up your data files
If you don't, they will be automatically erased from your hard drive during the installation process. It is therefore recommended to make a backup of all the documents you want to keep before start the installation of the new system. You can keep your files on another hard drive, whether external or internal, a USB key or even on an online storage service such as Google drive Where Dropbox.

Step 2. Restart your computer
Press the power button on your device and click on the button labeled To restart which you will see appear in the system shutdown options menu.

Step 3. Immediately press the Clear keys., Esc, F2, F10 Where F9.
Pressing one of these keys as soon as the computer is turned on will open the BIOS settings entry page. The key that must be pressed to open the BIOS page depends on the BIOS brand.
Some computers display a logo page as soon as they are turned on, at the bottom of which you will see the key to press to open the BIOS settings page or choose the boot device. The time available to you to do this is in the order of a few seconds, so you will have to do it very quickly if you want to get there on the first attempt

Step 4. Find the BIOS options page
The position and name of the tab corresponding to this page may be different from what is shown in the illustration above. If you search a little, you will be able to find it very easily.
If you cannot find the BIOS boot options menu, search online for the make and type of motherboard in your computer for help

Step 5. Give boot priority to your optical drive
Although the method to apply may be different depending on the brand of the BIOS of the computer, the setting of the priority level of the boot device is often presented in the form of a list of media that you will have to put in order. in which they will be scanned when the computer starts up. The bootable media with the highest priority will usually be the one you put on the first row in the list. Consult your motherboard manual if you don't know how.

Step 6. Place the Windows 7 installation disc in your DVD drive
Press the front button of the player to open it, carefully position the DVD on the tray of its player that you will then close with a simple push of your finger.

Step 7. Save the changes to your settings
Press the key shown on the screen or choose the option titled
Exit and save changes in the BIOS settings menu to save your new configuration.

Step 8. Shut down your computer
Place your installation DVD in its drive before shutting it down, then click the device shutdown button in the main menu of your operating system or press the computer's power button until until it stops completely.

Step 9. Start the computer from the Windows installation DVD
As soon as you turn on the device, place your installation disc in your PC's drive if you haven't already done so before turning it off. During startup, you should be presented with a selection list of boot media indicating, among other things, the function key corresponding to the drive where the installation DVD is inserted. Press this key to start the Windows installer.
If you do not see your DVD drive appear in the list offered, you may have made an error while setting the bootable media in BIOS. You will therefore have to redo these BIOS boot device selection settings, this time making sure to set the correct drive

Step 10. Choose Windows installation options
When loading, the Windows 7 installer will display a window on your screen. Use the drop-down menus implemented there to select the language of your choice, the type and layout of your keyboard, the time zone you are in, the date formats and currency symbols you want to use. Then click on the button labeled To continue which is in the lower right corner of the window.

Step 11. Click the Install Now button
This blue button is located in the center of your screen.

Step 12. Read and accept the terms of the user license
Carefully read the text of the software license offered by Microsoft then check the box labeled I accept the terms of this license. Then click on the button To continue located in the lower right corner of the display window.

Step 13. Select the Custom installation
This option will allow you to perform a fresh install of Windows 7. Note that in this case, all existing files on your hard drive or the target partition will be completely erased.
- Prefer the option instead Upgrade if you don't want to delete these files. Choosing this option implies that a Windows system is already installed on your computer. Note that you will not be able to upgrade from a Windows system to a newer one unless it has the same class of use. This means that if Windows Vista Home Edition is installed on your hard drive, you will not be able to perform this upgrade than to Windows 7 Home Edition, but you won't be able to do it to Windows 7 Premium.

Step 14. Select a hard drive and partition to install Windows
A hard drive is a hardware device for storing data on a computer, and a partition is a section of that hard drive that is logically divided or partitioned. Despite this difference, a partition is visible and identifiable to a user in the same way a regular hard drive is. Click on the hard drive or partition where you want to install Windows 7.
- If the hard drive or partition contains data, remember that it will be erased. irremediably. Follow these steps to format or erase its contents:
- select the hard drive or partition from the list of devices offered to you;
- click on Advanced disc options;
- click on Wipe off Where Format.
- If you have not yet partitioned your hard drive, create at least one partition on it to install Windows on, then do the following:
- select the hard drive from the list of devices offered to you;
- click on Advanced disc options;
- select New score among the options offered;
- select Partition size, enter the desired size and click on the button OK.

Step 15. Install Windows on the hard drive or partition of your choice
When you have decided on the disk or partition where to install Windows, select this media and click on To continue. The Windows installer will begin to set up the new system on your computer, which may need to restart several times during the process.
Method 2 of 4: Upgrade an existing system to Windows 7

Step 1. Start your computer
Start your PC normally using the operating system already installed.

Step 2. Check the hardware compatibility of your computer with Windows 7
Run the named utility Upgrade Assistant to scan your PC and check its hardware compatibility with the prerequisites for installing Windows 7. You can download this utility from This site.
- Upgrading your system to Windows 7 involves upgrading all software components from the already installed version of the operating system to version 7, but keeping the same class of use. This means that if you are using Windows Vista Home Edition, you will be able to upgrade to Windows 7 Home Edition, but under no circumstances will you be able to do this to another version of Windows 7, such as the Premium.

Step 3. Prepare your computer for upgrading to Windows 7
Follow the procedure described below to prepare your computer to install Windows 7 on it.
- Take a backup of your important files. There can always be a problem when modifying any operating system, and it will be essential to take precautions so as not to lose the fruits of your previous work. You can keep your files on another hard drive, whether external or internal, a USB key, or even on an online storage service such as Google drive Where Dropbox.
- Use your antivirus to check your hard drive for malware. These would affect your new installation, with all of their potential consequences, possibly magnified, even if you feel like the upgrade process is going smoothly.
- When your antivirus has finished its task, block or uninstall it so that it cannot interfere with the upgrade to Windows 7. You can unblock or reinstall it later.
- To speed up the upgrade and avoid the risk of dependency conflicts, uninstall programs that you don't need. You can reinstall them completely when the upgrade is complete.
- Update your current version of Windows using Windows Update.
- Erase unnecessary data files to speed up the system upgrade.
- Make a backup image of your hard drive in its current state. This step is optional, but it will allow you to restore your current system to working order if there was a problem installing Windows 7 or if you lost important files during the upgrade process.

Step 4. Insert your Windows 7 installation disc
Press the front button of the DVD player to open it, carefully position the DVD on the tray of its player which you will then close with the touch of a finger.

Step 5. Click on the Windows start menu
This is the Windows logo icon located at the lower left of your screen.
- You also have the option of booting your computer from the installation DVD as previously indicated, then selecting the option titled Upgrade in the Windows installer window.

Step 6. Click My Computer
This will display all drives currently connected to your computer.
- If you are using a recent version of Windows, open your system's file explorer, whose icon represents a folder with a blue-colored clip. Then click on the button labeled This PC or on the name of your computer.

Step 7. Double-click on the drive containing the startup disk
You will see the contents of the DVD appear. Allow the Windows 7 installer to run.

Step 8. Click on Setup.exe
This will start the installer for Windows 7.
Step 9. Click Install Now
This blue button is located in the center of your screen.

Step 10. Install Windows Installer Updates
Microsoft has implemented these updates to address identified issues that may arise during system installation. This update is done on the installer loaded in memory and will bring more fluidity and stability to the installation or upgrade process. To get these updates, click
Log in to get the latest installer updates (recommended). If you want to override it, just click on
Do not load installer updates.

Step 11. Read and accept the terms of the user license
Carefully read the text of the software license offered by Microsoft then check the box labeled I accept the terms of this license and click on the button labeled To continue in the lower right corner of the window where the license text is displayed.

Step 12. Select the Upgrade option
This is the first option offered in the displayed menu. The installer will check your computer for hardware compatibility and install Windows 7.
Method 3 of 4: Use a USB flash drive or external hard drive

Step 1. Connect a USB flash drive to your computer
Choose an available USB port to connect your flash drive to. The latter must have a minimum size of 4 gigabytes to be usable.

Step 2. Move all personal files stored on your flash drive
Be sure to check that there are no more files on your USB drive before installing the Windows ISO image.

Step 3. Download the Windows 7 installation ISO image
An ISO file contains raw data that is reproduced bit by bit from an installation CD or DVD. This is why it is also called ISO image Where disk image. Note that the download time of this ISO image can be quite long and will mainly depend on the quality and speed of the internet connection you are using.
- Here is a list of download links for this ISO image.
- If the link we gave you didn't work, click here for a list of Windows 7 download links in PDF format.

Step 4. Download the Windows 7 USB / DVD download utility
You can get this program by clicking here. This utility is intended to support downloading the Windows 7 installation ISO image and then saving it appropriately to your USB flash drive.

Step 5. Install the Windows 7 USB / DVD download utility
After downloading, double-click on the file "Fr-FR.exe" and click on To install. Follow the on-screen instructions given to you by the installation wizard.

Step 6. Open the Windows download utility
When the program is installed on your system, open it from the Windows start menu.

Step 7. Select the Windows 7 ISO image that matches your needs
On the Windows 7 download utility screen titled Choosing the ISO file, click on To research, then browse to the location of the ISO images to download. Select the one that corresponds to your needs and click on To continue.

Step 8. Click USB Flash Drive
This is a blue button located in the lower right corner of the screen titled Choice of media type.

Step 9. Select the flash drive and click Start Copy
Use the drop-down menu titled Step 3 of 4 on your screen to choose the flash disk on which you want to place the ISO image, then click on Start copying.
- If you see a warning appearing telling you Insufficient free space, click on the button labeled Erase flash disk. This will free up space on your USB drive by erasing all the files on it.

Step 10. Restart your computer
Press the power button on your computer and click on the button labeled To restart which you will see appear in the device shutdown options menu.

Step 11. Immediately press one of the Clear keys., Esc, F2, F10 Where F9.
Pressing any of these keys as soon as the computer is turned on will open the BIOS settings entry page. The key you will need to press depends on the BIOS brand of your computer's motherboard.
Some computers display a logo page as soon as they are turned on, at the bottom of which you will see the key to press to open the BIOS settings page or choose the boot device. The time available to you to do this is in the order of a few seconds, so you will have to do it very quickly if you want to get there on the first attempt

Step 12. Find the BIOS options page
The position and name of the tab corresponding to this page may be different from what is shown in the illustration above. If you search a little, you will be able to find it very easily.
If you cannot find the BIOS boot options menu, search online for the make and type of motherboard in your computer for help

Step 13. Give boot priority to Flash Disk or Removable Disk
Although the method to apply may be different depending on the brand of the BIOS of the computer, the setting of the priority level of the boot device is often presented in the form of a list of media that you will have to put in order. in which they will be scanned by the BIOS to start the operating system. The device with the highest priority will usually be the one you put on the first row in the list. Consult your motherboard manual if you are unsure how to do this.

Step 14. Start your computer from the USB drive containing the Windows installer
Insert your USB drive into an available port then press the device's power button. As soon as you turn on the computer, you should be presented with a selection list of boot media that shows you, among other things, the function key corresponding to your flash drive. Press this key to start the Windows installer.

Step 15. Choose Windows installation options
When loading, the Windows 7 installer will display a window on your screen. Use the drop-down menus there to select the language of your choice, the type and layout of your keyboard, the time zone you are in, the date formats and currency symbols you want to use. Click on the button labeled To continue which is in the lower right corner of the window.

Step 16. Click the button labeled Install Now
This blue button is located in the center of your screen.

Step 17. Read and accept the terms of the user license
Read the text of the software license offered by Microsoft and then check the box titled "I accept the terms of this license". Click on To continue, in the lower right corner of the license display window.

Step 18. Select the Custom installation option
This option will allow you to perform a fresh installation of Windows 7. All files existing on the drive where you will install the system will be deleted.
- Prefer the option titled Upgrade if you don't want these files to be erased. Choosing this option implies that a Windows system is already installed on your computer. Note that you will only be able to upgrade a Windows system to a newer one if it has the same class of use. This means that if Windows Vista Home Edition is installed on your hard drive, you will not be able to perform this upgrade than to Windows 7 Home Edition, but you will not be able to do it to edit Premium of Windows 7.

Step 19. Select a hard drive and partition to install Windows
A hard drive is a hardware device for storing data on your computer, and a partition is a section of it that results from logical division or partitioning. Despite this difference, a partition is visible and identifiable to a user in the same way as a regular hard drive. Click on the hard drive or partition where you want to install Windows 7.
- If the selected partition or hard drive contains data, remember that it will be erased. irremediably. Follow these steps to erase or format the hard drive:
- select the hard drive from the list of devices offered to you;
- click on Advanced disc options;
- click on Wipe off Where Format.
- If you have not yet partitioned your hard drive, create at least one partition on it to install Windows on by doing the following:
- select the hard drive from the list of devices offered to you;
- click on Advanced disc options;
- select New score among the options offered;
- select Partition size, enter the desired size and click on the button OK.

Step 20. Install Windows on the hard drive or partition of your choice
When you have decided on the disk or partition where to install Windows, select this media and click on To continue. Windows will begin to install. Your computer may need to restart several times during the installation process.

Step 21. Remove your USB drive from its port
Disconnect your flash drive when Windows installation is complete.

Step 22. Restart your computer
Allow the device to restart normally when you have finished installing Windows 7 and removing your USB drive.
Method 4 of 4: Configure Windows after installation

Step 1. Enter your username and your computer username
Then click on Continue. The first time you start your computer after installing Windows 7, you will need to go through a system setup process.

Step 2. Enter the password of your choice and click Continue
Type your password in the text entry boxes provided for this purpose. If you do not want to use a password, do not enter anything in these dialogs and just click on To continue. If you entered one, this password will later be used to log into your Windows user account.

Step 3. Enter the Windows license key and click Continue
If you purchased an original DVD, you will find this license key on the box containing the disc. If you want to override it, just click To continue, but Windows will automatically enter trial mode for 30 days, after which you will need to enter a valid license key in order to continue using the operating system.

Step 4. Choose the settings applicable to updates
Utility Windows Update will offer you the options Use recommended settings, Install only important updates Where Ask me later.
- Use recommended settings will have the effect of performing updates and setting the security settings recommended by Microsoft.
- Install only important updates will only install in the future the updates that are essential for the proper functioning of the system.
- Ask me later will have no effect other than to suspend the system security settings until you have made a decision on this point.

Step 5. Set your time zone and set your system to the time
Use the drop-down menu provided to choose your time zone, then use the calendar and clock to set the current date and time for your system.

Step 6. Choose the type of network to connect to
When your computer connects to the network, Windows will begin the final process of installing your system by downloading the most recent updates and any necessary drivers.
- Choose Home network if the computer is connected to your home network.
- Choose Company network if it's connected to your workplace network.
- If you are connecting from a public network such as a restaurant or an airport, choose Public network.