Speed. Are these factors in my systems performance?

[Devon7234]

Good afternoon everyone. First and foremost, thank you for the countless times I have come to this forum in search of an answer and found a solution.
I am ecstatic with the support and members who go out of their way to help. While using a computer for well over 20 years now, M$ windows was always the OS.
I use Unbuntu 10.10.
I still have the windows OS as an option when I boot up the computer. I haven't used it in well over a year so I would like to remove it if necessary. Does its existence on my computer slow down my startup time?
In short, I am trying to maximize the performance of this system. I game rarely. I do watch movies, browse the internet, type papers, and follow the Forex.
Could I just do a complete format of the system after saving the drivers and install Linux again? Would this get rid of all the garbage windows junk on my system?
Looks like I can only add 2 GB RAM, anyway around this?

Processor: Intel Core i5-650 Processor 3.2GHz with Turbo Boost Technology up to 3.46GHz (4MB L3 Cache)
Operating System: Genuine Windows 7 Home Premium (64-bit)
Memory: 6GB 6144MB DDR3 Dual-Channel 1333MHz Memory
Hard Drive: 1TB 1000GB SATA hard drive (Green Product - variable RPM)
Video: NVIDIA GeForce 315 Graphics Card with 512MB Dedicated Video Memory
Audio: High Definition Audio with 5.1-channel Surround Support
Available Expansion Slots: 0 - PCI-E x16, 2 - PCI-E x1, 1 - PCI
External Ports: (10) USB 2.0 ports (4 Front, 6 Rear), VGA, DVI, (2) PS/2 Ports, HDMI™, (3) Audio Ports
Media Card Reader: Multi-in-One Digital Media Card Reader with Photo Frame Button
Memory Capacity: Expandable to 8GB
Motherboard: System board with Intel H57 Express Chipset
Network: 10/100/1000 Gigabit Ethernet LAN (RJ-45 port)
Optical Drive: 16X DVD+/-R/RW SuperMulti Drive
Power Supply: 300W Power Supply
Dimensions: 16.23" (H) x 7.09" (W) x 16.27" (D) or 412.24mm (H) x 180mm (W) x 413.2mm (D)
Product Type: Recertified

[Jonathan183]

If you have a Wubi install then creating a partition and doing a conventional install will probably improve things, otherwise unless you are out of disk space the fact Windows is on the hard drive will make little difference imo

RAM is likely to be limited by motherboard/bios ... be careful about what type and size you can use. I ended up buying 2GB for a desktop system which will not use it (despite the manual for the motherboard saying it should)