Amazon.com : Microsoft Surface Pro Tablet 128 GB Hard Drive, 4 GB RAM, Windows 8 Pro - English : Tablet Computers : Electronics
Windows 8.1 System Requirements
Windows 7 Vs 8.1 Vs 10
Windows 8.1 - Find out How Much Memory RAM is Installed on Your Computer - YouTube
Microsoft Windows 8 System Requirements Lower Than Windows 7
Refining the recommended system requirements for Windows 8 | Ars Technica
Windows 8 64-bit Upgrade problems
How to Check Computer Memory on Windows 8/8.1
Windows 10 Help Forums
Windows 8 - Wikipedia
Faster booting, smaller footprint make Windows 10 an easy upgrade for old PCs | Ars Technica
8 GB Ram installed 4 GB Usable - Microsoft Community
How to check computer specs Windows 8, 7, Vista, XP, Server | P&T IT BROTHER - Computer Repair Laptops, Mac, Cellphone, Tablets (Windows, Mac OS X, iOS, Android)