Windows 7: help, services.msc (Server and Workstation)

is it advisable to turn off Server service in the services.msc in order to stop sharing (run>>>cmd>>>'type:' net share>>>'output:'/drivepath1/$, /drivepath2/$, /drivepath.../$, IPC$, ADMIN$), my computer got accessed by someone within the range of my network via vista ultimate orb (I don't know if it is a pirate version) then that "someone" installed download services inside my system via windows update.

is it advisable to turn off Workstation service in the services.msc, I see that server and workstation are similar but I don't know the differences.

additionally, I figured it out that laptops are more fragile than desktops.
(why?) unless a desktop has a ups, the laptop battery serves as a depot for a virus
(huh?) a software settings can be programmed to save a restore point as long as there is a proper shutdown and a power supply

my o.s. is Windows 7: Home Premium