click here for a free and neet graphics tool to quickly show which folders and files are taking all the space.
Add/remove programs to clear out whatever you don't use.
Defragmenting your hard drive will save some space too. Diskeeper Lite (10,005 K) click here Defragmentation program that will run in the background, and completes the task more quickly. Hopefully you can make space for this.
Your printing problem may well be related to free disk space. Some print jobs may require 100 Mbytes or more for temporary files.
Do a disk-cleanup too.