New
#101
Is this one fine? Amazon.com: Sony CR2032 Lithium Ion Battery: Health Personal Care I'm running a this one here. Just double checking before I purchase it
Okay, good news. I got the CMOS battery in today. Bad news is that I took the old battery out and replaced it with the new one. I powered the desktop on and I still have the same exact problems! Any other options?
About the activation of Windows 10, you'll need to be at Windows Updates and Activation - Windows 10 Forums
About the rest of your data, they are on your hard drive, as long as your hard drive is fine your data is fine. It is however recommended to regularly backup your data :)