[System]
Dell Studio XPS Laptop 1645
Intel Core i7 - Q820 @ 1.73GHz
6GB RAM DDR3
ATI Mobility Radeon HD 4670
Windows 7 Home Premium 64-bit
500GB SATA

Well... simply put, I feel like my laptop is not running at 100%. I think that there are a lot of processes that came by default with my laptop or that ended up on my computer that really limit it's capacity. I realize this when I'm running games like Starcraft 2 and I'm forced to run all the graphics on Low, since if I pump it up, something weird happens, and the laptop stops receiving power from the charger. (The blue light on the end of the charger goes off. I'm forced to disconnect the power from the wall and re-connect it.)
Right out the bat, I was thinking to format it after making a really small backup of documents. I don't know if you guys have any advice on what to tweak, any tips on Win 7, and mainly maintenance for the long run, such as registry issues, useless processes that might appear a long the run, software that not only promise to help out with performance, but actually does it etc.
Thanks a lot in advance for any help that may come. :)