Originally Posted by moosiesmom
As long as admissions doesn't think that way !!

A "W" here or there is not an issue. A slate of them in one semester is not an issue - though someone may ask why you pulled out. A generous helping of W's liberally sprinkled throughout your transcript is a warning sign.
For what it's worth, I got into a competitive program with a 1st-degree transcript that had 4 F's, 2 D's, and 2 W's. In order to graduate, I repeated all four F's and one D and got A, A, B, B, C but those old grades did not disappear from the paperwork. The thing is, I followed that lackluster performance with 7 semesters of A's in upper division chemistry and biology so I proved that I could be a successful student after all.
There is no 'formula', just do your best and you'll probably be OK.