Change That Funky Logo
Hmmmmm... did you ever buy a PC and found that when you go to My Computer, right click, then hit Properties, the logo of the place where you bought the PC appears on the lower left side corner of the properties box?
Did you ask yourself, damn that <insert name here>, I don't want their logo to appear here!
Well here goes, let's replace it.
First, you must have your logo or anything you want prepared. Then in Photoshop, make a 180 x 114 pixel canvas. Paste your image, resize if necessary. If you are satisfied with the image, got to File > Save as... the choose BMP as the filetype (Windows/24bit), then type OEMLOGO.bmp on the filenamebox.
Next, create a text file with the following contents;
[general]
manufacturer = Anything goes here
model = As well as here...
Then save it as OEMINFO.ini.
Once all of these are done, copy the 2 files we have created then paste it in you //WINDOWS/system32/ directory.
Done! Go on and check! It should somehow look like the image below;

PS: BTW, if you want to have transparent parts in your image, just fill the supposedly transparent areas with the color #FF00FF (Like what you see in most game sprites, purpulish/pink color). But, be sure to save it as a 256 color bitmap in order for it to work, else it wouldn't.