Not much to go on here...
so ...your disks are full.
A link with many ideas about computer setup http://forums.adobe.com/thread/436215?tstart=0
Work through all of the steps (ideas) listed at http://ppro.wikia.com/wiki/Troubleshooting
If your problem isn't fixed after you follow all of the steps, report back with the DETAILS asked for in the questions at the end of the troubleshooting link
this would be a good example of why we need a 'click here to view system specs' drop down box under the user name or somewhere on the lower part of op's message.
For those who provide it, click on the avatar and look for "adobe products/system information." I find few who use it, it is difficult to provide enough information to avoid answering questions, and, in this case, the OP is brand new.