Windows *should* automatically remember your window size and position for you when you close any application.  However, there are some [caveats].  

### Try to reset the the window with the following steps:

1. Close all instances of the application
2. Open a single instance of the application
3. Resize window to the desired size and position
    * **Note**: This does *not* work if the window is sized using [Aero Snap] 
    * i.e. *don't* use the <kbd>WinKey</kbd> + arrow OR drag the window to any screen edge
4. Maximize the window:  &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
 ![Maximize](http://i.imgur.com/moxApZg.png)
5. Restore Down the Window: 
 ![Restore Down](http://i.imgur.com/lqag1SU.png)
6. Close the Window: &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
 ![Close](http://i.imgur.com/QKrROKs.png)


[Aero Snap]: http://windows.microsoft.com/en-us/windows7/products/features/snap

[caveats]: http://social.technet.microsoft.com/Forums/windows/en-US/a7b78530-d502-4c13-b4dc-855ef5afed25/windows-7-opens-ie-and-others-in-a-small-window?forum=w7itproperf#89f3668d-cf03-4d08-8e4a-39dc2928c248

I couldn't fix it no matter what I did. I'm on Windows 7, 64 bit. I know; creating a shortcut to that file, right clicking on the shortcut and choosing run-> maximize is a workaround but this is too much a hassle. Will I need to create shortcut for every single notepad file? I also created another file and pasted the contents into the new one but na, it won't work, even the second file opens up in a very small window. I want my notepad files to open up maximized. Do I want too much? It is either my google skills or I'm one of the very few on this planet experiencing this! 
Thanks all