My PC runs on Win XP, with a P4 2.80GHz, 1.00 GB of RAM, all updated with MS updates with an 80 GB drive partitioned into the C and D drives with 20 and 60 GB storage respectively. After Win XP uses up its space I am left with about 13GB on C drive. Through the couple years I have filled most of the space on C and I am down to...where it gets interesting. Sometimes my computer shows 1.4 GB of space and sometimes as little as 100 MB of space. I run Norton and sometimes it keeps a lot of protected files in the recycle bin, but even after cleaning it out it can vary where literally where one minute I have over 1 GB of space and next I have 300 MB of space. Any suggestions how to stop this from happening? ALSO, is it OK to compress old file and what does that do to them. Thank you.