I'd move your page file to the data partition... it has room to grow there.
I'd also get and run CCleaner... get rid of all the crap and temp files so it doesn't take ages for the HDD to find space to read or write from on the OS partition.
I have 2 comments to what Neb said:
1. If possible, get a second hard drive, install it, and then put the page file on that. It's
much better to have a page file on a completely separate drive than to have it on a separate partition of a single drive.
2. CCleaner is good... but be careful using it. CCleaner is a utility app that I call almost "too good". What I mean by that is that as it scans your system for any crap, superfluous files that it can get rid of, sometimes, it deletes a file (or 2) that it
thinks is a crap file but is actually an important file that may be critical to the proper functionality to the system. You then think that your PC is all nice and clean, try to restart it and POOF... you get a BSOD or some other major error that prevents the system from booting to the OS.
Make sure after you run CCleaner that before you click on the clean-up button (or whatever it's called), that you first inspect the list of what it's getting rid of..... if that list is huge then you have 2 choices: either cancel the whole thing and go through the slow way and clean up the system manually or, go through the list displayed in the CCleaner screen with a fine tooth comb to make SURE that no critical files are mistakenly in there.
Some people have had excellent results with CCleaner as it's usually quite good at differentiating between important system files and crap files... but not always. And all it takes is once to hose your system.