If your c drive partition large than system take more time for boot why?

Wow let's first rephrase your question.


If the c-drive partition on your hard drive is large, why does the system take more time to boot?





The response would be that unfortunately boot files nor any other files are not stored sequentially on the hard drive. So every time your computer boots up it has to serach through your vast hard drive to access the files required for your computer to start up. An analogy is: if you have a file cabinet in which none of the files are organized in alphabetical order, (but are instead random) but you only have 10 files to search through to find the one you're looking for... you're going to find it relatively fast. Whereas instead if that same disorganized file cabinet has 40 files it's going to take you 4 times as long to look for one file. Your computer is the same way.