Reason why computer boot very slowly and how to fix this problem?

Reason Why computer boot very slowly and how to fix this problem 

Generally the startup time unwanted programs are the main reason for computer booting very slowly then background programs are also take a time to booting time

Background programs are generally called TSR 
"TERMINATE AND STAY RESIDENT" IS SIMPLY CALLED AS TSR

How to disable TSR and unwanted startup programs

First click start and type MSCONFIG on the search box and open the msconfig

On that msconfig window select the startup tab 

startup item is stands for software runs on the startup time 

manufacturer stands for software companies like microsoft,google,adobe

command stands for where the programs are located 

On that startup list except microsoft software uncheck unwanted software in the list  

Caution :- do not uncheck the 

microsoft software  

Next click Apply and ok

Lastly it shows you may need to restart your computer to apply the changes click the restart button... 
Now your computer booting fastly