• Download the ISO file for Windows 7: Price: BDT: 249 tk.
  •  If you have a valid product key for Windows 
  • 7, you can download the ISO file from the Microsoft website (https://www.microsoft.com/en-us/software-download/windows7). 
  • Make sure to download the correct version of the ISO file for your computer's architecture (32-bit or 64-bit).
  • Create a bootable USB drive or DVD from the ISO file: To create a bootable USB drive, you will need a USB drive with at least 4GB of storage space and a utility such as Rufus (https://rufus.ie/) to write the ISO file to the USB drive. To create a bootable DVD, you will need a blank DVD and a DVD burning software such as Windows Media Player or ImgBurn (https://www.imgburn.com/).
  • Boot your computer from the bootable media: Insert the bootable USB drive or DVD into your computer and restart your computer. Press the appropriate key (usually F12 or Esc) to enter the boot menu and select the bootable media as the boot device.
  • Follow the prompts to install Windows 7: The Windows 7 installation process will begin, and you will be prompted to follow the on-screen instructions to complete the installation. This will typically involve selecting your language, time and currency format, and keyboard or input method, as well as agreeing to the license terms.
  • Configure your settings and install updates: After the installation is complete, you will need to configure your settings and install any necessary updates. This may include setting up a user account, selecting your desktop background, and installing security updates and drivers.