My computer won't open any programs.

When i start up Windows loads fine, the regular start-up programs open ect.
I got an error before restarting before nothing opened, and explorer.exe would not open.
There are a few weird process now o,0 such as 4.exe, and that goes away then 1.exe opens -.-
And also iunno why but when i go to my computer this thing comes up "Map Network Drive" and i cant get to C:\
Task manager works fine, i can cancel process and all that.
But everything opens fine on startup but if i try to open anything after it just simply does not open.
What should i do about this??


Thanks


EDIT* I am sick of this BS, i am just going to reformat the dang thing.

Answered here: http://www.techspot.com/vb/topic99009.html