Hi,
Thanks for showing your interest in Windows 10.
I will certainly help you with this.
I would suggest you to download the Windows 10 from the link below and make sure you have a minimum of 20 GBs of free space.
Download Windows 10
Note: I highly recommend
backing up all of your important files and folders onto an external storage device before attempting the installation.
I suggest you to check whether your computer meet the minimum system requirements to upgrade to Windows 10. If your system doesn’t meet the system requirements, I suggest you to contact the device manufacturer for further updates related Windows 10.Refer
the below article to check the Specification about upgrade to Windows 10 operating System.
Specifications http://www.microsoft.com/en-us/windows/Windows-10-specifications#langs
Let us know if you need further assistance. We will be glad to help you further.
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Thanks & Regards,
Isha Soni