To keep you from running into future complications. Simple plan for you.
External USB hard drive.
With your future external hard drive plug it in and on your own, just create your own
folders as we always do . Right click make new folder and name it.
I like to make a folder called MASTER SAVES and than open it and than make the folders below
Documents
Picture
Video
Downloads
Desktop
C Drive
You will have to manually drag and drop whatever you want to keep yourself to that MASTER FOLDER and it's sub folders.
AND to be clear these folders have no ties to the Windows created same folders on your "C" drive.
SO if your main PC takes a sick day all you need to do is unplug the USB cable from main PC and plug into your laptop You have all your important work and you keep rolling forward.
But I will say again YOU have to make sure You move your daily work over to the external hard drive.
The best part is no matter what happens to you main PC or your laptop the heart of your work "data" is on that external hard drive.
I am already doing similar like what you have mentioned, except that is it on an internal 3.5 WD hard disk drive instead of an external disk. Those files that I created myself I already save them in an internal 3.5 WD hard disk drive that is used for saving data only. I think "unplug the internal WD 3.5 inch hard disk from my desktop PC then connect the internal WD 3.5 inch hard disk to my laptop via an external USB hard disk reader docking station" will act the same like storing on an external drive, is it correct?
These folders Desktop, Documents, Downloads, Music, Pictures, Videos created by windows tends to have some files new appearing by itself due to software auto save to these locations (usually the software default locations will auto save it to these locations. e.g. if I click on a pdf in my browser it might just auto save to Downloads folder, some video or photo software might just auto save to Pictures or Video, a document scanned will auto be saved to Pictures, screenshot software auto save screenshot to Pictures, etc), so usually some data will "appear by itself" in Desktop, Documents, Downloads, Music, Pictures, Videos so I wanted to change the default location of C: drive [Desktop, Documents, Downloads, Music, Pictures, Videos] folders from C: drive to the WD 3.5 internal hard disk E: drive (by following option 2 method
http://www.sevenforums.com/tutorials/18629-user-folders-change-default-location.html ) to prevent losing those data in these folders. Software likes make folders or save data in these folders by default. How do you prevent data "appear by itself" in Desktop, Documents, Downloads, Music, Pictures, Videos? Do you visit these folders everyday then manually move the data that "appear by itself" to external drive?
Thanks.