Windows 7 hi i have problem at my BIOS where i have installed ubuntu so when it started it asking Grub.the dri

Step 1: Back Up Your Data​

Step 2: Format the Drive​

1. Boot from a Windows Installation USB:
   • Create a bootable Windows installation USB drive (if you don't have one).
   • Boot your laptop from the USB drive.
   []Access Disk Management:
   • In the Windows Setup, go to "Repair your computer" > "Troubleshoot" > "Advanced options" > "Command Prompt".
   []Use Diskpart to Clean the Drive:
   • In the Command Prompt, type diskpart and press Enter.
   • Enter the following commands one by one:
     Code:

      list disk select disk X (Replace X with the disk number of your laptop drive) clean exit

     Step 3: Install Windows​

     After cleaning the drive, you can proceed with installing Windows as the sole operating system on your laptop.
   []Install Windows:
   • Reboot your laptop and boot from the Windows installation USB again.
   • Follow the on-screen instructions to install Windows on the empty drive.
   []Complete the Setup:
   • Once Windows installation is complete, set up your user account and configure the settings.

     Additional Tips:​

     • Make sure to select the correct drive when formatting to avoid losing data on other drives.
     • Ensure you have a valid Windows license key for activation.
     • If you encounter any issues during the installation, refer to Windows installation guides or contact Microsoft support for assistance.
     By following these steps, you can remove all existing operating systems and have only Windows installed on your laptop. Remember to back up your data before proceeding with the formatting to avoid any data loss.