I need help figuring out whether I should install a 64 bit or 62 bit version of Win 7 because I'm having some trouble deciding. Here's my system information: Component Details Processor AMD Turion(tm) 64 X2 Mobile Technology TL-60 4.8 Memory (RAM) 3.00 GB Graphics NVIDIA GeForce 7150M / nForce 630M Gaming graphics 1071 MB Total available graphics memory Primary hard disk 34GB Free (137GB Total) Windows Vista (TM) Home Premium SystemManufacturer Hewlett-Packard Model HP Pavilion dv6700 Notebook PC Total amount of system memory 3.00 GB RAM System type 32-bit operating system Number of processor cores 2 64-bit capable Yes Storage Total size of hard disk(s) 149 GB Disk partition (C 34 GB Free (137 GB Total) Disk partition (D 2 GB Free (12 GB Total) Media drive (E CD/DVD GraphicsDisplay adapter type NVIDIA GeForce 7150M / nForce 630M Total available graphics memory 1071 MB Dedicated graphics memory 64 MB Dedicated system memory 0 MB Shared system memory 1007 MB Display adapter driver version 184.108.40.20613 Primary monitor resolution 1280x800 DirectX version DirectX 9.0 or better Network Network Adapter Microsoft Tun Miniport Adapter Network Adapter NVIDIA nForce Networking Controller Network Adapter Atheros AR5007 802.11b/g WiFi Adapter It did say 64-bit capable but I stumbled upon this piece of information which confused me: Can I upgrade from a 32-bit version of Windows to a 64-bit version of Windows? No. If you are currently running a 32-bit version of Windows, you can only perform an upgrade to another 32-bit version of Windows. Similarly, if you are running a 64-bit version of Windows Vista, you can only perform an upgrade to another 64-bit version of Windows Vista. If you want to move from a 32-bit version of Windows to a 64-bit version of Windows Vista, you'll need to back up your files and then perform a custom installation of the 64-bit version of Windows Vista. Q #1: So can I install a 64-bit Win 7 on my system? Here's another one that made my mind boggled: Would I benefit from using a 64-bit computer? The benefits are most apparent when you have a large amount of random access memory (RAM) installed on your computer (typically 4 GB of RAM or more). Because a 64-bit operating system can handle large amounts of memory more efficiently than a 32-bit operating system can, a 64-bit system can be more responsive when running several programs at the same time and switching between them frequently. Q #2: My system has a total amount of system memory of 3 GB of RAM. So I shouldn't install a 64-bit Win 7 because I have less than 4 GB of RAM? Also, if it's not much trouble, I also play World of Warcraft a lot and I was wondering if 7- 9 FPS in Dalaran with all low settings (except the resolution which is 1280x800) normal for this machine? I could lower the resolution to improve the performance but is their any other way?