need help

i got a new computer an my cousin tought me a lot about them mostly the basics but im learning more an it is very very slow an it skips alot when u play music like when u go on the web it starts to skip . neway i would …

im trying to delete stuff an it always says make sure it aint write protected what does that mean an how can i erase it? and whats a vids: xvid decompressor?

I have recently purchased a refurbished dell pc that had been wiped leaving no operating system just the initial start up, but after switching on the pc i am prompted with a c:\> which i can't get past, does anyone know how to do this so that i can install …