I will try to be as basic as possible, its not hard. Remember that there is no such thing as a dumb question, however they are easier to answer
1) Double click on MY COMPUTER.
2) Double click on the icon for your C drive
3) Double click on MY COMPUTER again
4) Double click on the icon for your D drive
You should now have two seperate windows open, one for C & one for D
5) Right click an empty spot on you task bar (the bar at the bottom of the screen where your START button is, & click TILE WINDOWS VERTICALLY. this will align your two windows side by side for easy drag & drop method.
********** now we are ready *****************
6) In the D window, click File, NEW, FOLDER. Name the folder Eddys Videos, or what ever you want. then double click on the folder name.
7) Locate your video file on the C drive. Most likely in a folder called MY Videos.
8) Highlight the videos you want or just select all, hold the left mouse button down & drag the files to the D window, release the mose button. THATS IT.
9) check & make sure that all the files copied okay, then if you feel comfortable you can delet the ones on the C drive.
I have to run now now

but I will give you some info on CCleaner tomorrow.