Windows 7 upgrade from Windows XP
I just found out that MS will no longer provide support for Windows XP, therefore I will need to upgrade my laptop to Windows 7(Acer);
My questions are as follows:
1. How do I upgrade? do I need to uninstall the XP first or it will be done automatically as soon as I upload the Windows 7 software?
2. Do I need to back up all my files first?
3. Where is the cheapest place to buy Windows 7?
4. Anything else I need to be aware of?
Thank you in advance!