You could add temporary files to your list.
This LINK may help explain.
When you highlight any of the options you will see description which will help you to decide,and sometimes you will see view files.
To open disk cleanup faster,start>run>cleanmgr
You might want to consider using CCLEANER in lieu of disk cleanup.ccleaner has many features.What I do is run it every time I shutdown.
You'll notice that ccleaner has three versions avaiable,I use the slim version,no yahoo tool bar and english only.
I have a Compaq Presario Pentium 4 using Windows XP Home Edition.
When using Disk Cleanup to free space on Presario (C) which options should be checked? Temporary Internet files and Recycle Bin are the only two I currently have checked.
Thanks for your help.