Alana, here's a summary of what you can do. I don't take the credit for this summarization since I found it looking for possible solutions to your problem earlier.
"in safe mode delete
1) c:\file####.chk
2) *.tmp in c:\temp & c:\windows\temp
3) Cntl panel - internet options (or rtclk desktop Blue E & click prop's) (or in IE click Tools - internet options): click delete cookies, delete files, & clear history.
4) Open Windows Explorer - expand in left pane to c:\windows\temporary internet files, hit shift + * on numkeypad to expand all of its subdirs - if there are any files still in there or any of its subdir's - delete them.
5) defrag d:, chg location of swap file - cntl panl, system, perf, virt mem, select "let me specify" & chg "hard disk" to d:, leave min & max the way they are, & reboot pc."
Hope this helps!
EDIT: Ugh, just noticed #5 which mentions a D drive was for someone with another drive and won't pertain to you. However, the steps to change your virtual memory are the same for you only you won't be putting your swap drive on a "D" drive since you don't have one.