Hello, I would also want to suggest you to update to Windows 10 to have a safer and more reliable operating system. I suggest you to backup your important files also to Google Drive, which offers 15 GB for free.
Actually I wanted to switch on Windows 10. But I am having emotional touch with Windows 7 which makes me tough to upgrade. But Thanks for the opinion. I will definitely switch to Windows 10.
Here in India it is very lengthy task to upload data to cloud because, limited speed of internet. Thats why I usually preffered External hard disk to back up