Hello
To reinstall Windows 10, you can create a bootable USB drive using the Windows Media Creation Tool. Unfortunately, as you've mentioned, Windows 8 is no longer supported, which might be why you're encountering issues with downloading the tool.You'll need access to another PC with internet connectivity to download the Media Creation Tool and create the bootable USB drive. If you're unable to do this yourself, you might consider reaching out to a friend or a professional service that can assist you with the process.
Here's a general guide to help you with the process:
Prepare the USB Drive: You'll need a USB drive with at least 8GB of space. On a device that has internet access, visit the official Microsoft website to download the Windows Media Creation Tool.
Create Installation Media: Use the tool to create a bootable Windows 10 USB drive.
Boot from USB: Insert the USB drive into your PC. Restart the computer and enter the BIOS setup to change the boot order to boot from the USB drive first.
Install Windows 10: Follow the on-screen instructions to perform a clean install of Windows 10. When prompted, choose "Custom: Install Windows only (advanced)".
Format the Drive: During the installation process, you'll be able to select the drive to install Windows. Choose the drive where Windows 8 is installed and format it.
Continue Installation: After formatting, select the unallocated space to continue with the installation.
Finish Setup: Once the installation is complete, follow the prompts to finish setting up Windows 10. Enter your product key when prompted.
Please ensure you back up any important data before you begin the installation process as formatting the drive will erase all data.