I reload my computer all of the time, as its always best practice. Since I reload my computer about every 6 months or so I set up my computer the way I like it and then I create an image of it so for the next year or so I just have to run the program to reset everything. Then I run updates on everything I have installed. I have one of those WD Live Drives so most of my media is chilling there with direct access on all of my consoles and computers, even my cell phone.
As far as componets get a can of compressed air and take apart your laptop and blow it. In the end you have a fresh computer free of bloatware.
BEST TIPGrab all of the driver files before hand, go to your laptop manufacturers website and then go to the support section for driver downloads. Put that on a USB/Disk. Why do this? Imagine having your computer nice and fresh, but all the sudden you're not able to connect to any wireless network because it doesn't have the proper wireless drivers which may make it difficult to download any other drivers or applications you may want.
Also many people overlook flash player and java rde which you're going to want on your computer, you can download these before and have it installed on your computer as well.
Lastly be sure to format your hard drive. I always recommend a full format, but a quick format will work. It depends what kind of data you have on your hard drive, but every time I reload I make sure to do at least a 7 pass format to ensure a hard time anyone recovering that data. @Active Boot Disk can help you there
Hope that helps and guides you in the right direction
-TRAiN3R