Description: Creating a file with a fixed size  
Platform: Windows Xp
Usually when you create a new file this file has 0 bytes, but you should know that there is the possibility to create a file of lets say 1 MB from the start. To do that click on Start --> Run... --> type "cmd" and press ENTER. At the command prompt type " fsutil file createnew c:\file.txt 1048576". This will create a file named "file.txt" with the size of 1 MB.