Windows XP forum: Hard Drive full - now XP not running properly - HELP!

I hope someone can help.

My daughter downloaded a huge amount of photo's from our camera to the C;Drive which wiped out the remaining memory.

Now when the pc starts it is not running my normal XP home desktop - it seems to be only showing the shared desktop icons and none of my programs are running correctly?

It is as if it is running in some sort of minimal mode because there was not sufficient memory but even though I've transferred all the photo's onto my USB drive, run CCleaner and now got 2gb hard drive space it still starts in this minimal way each time.

My Desktop folder is still in my User file with all my files visible under my computer. My programs files are still all under my User name also.

However when I click on something like Microsoft Office or another similar program it comes up with 'Preparing to Install' and tries to configure it....then fails.

Under Documents & Settings in the Local Disk (C:) I have the usual Users files but also a blue TEMP file which I'm sure was not there before?

Is XP home running in a temporary mode because of the original memory issue? How can I get it back to running as it was? Everything still seems to be there just not starting up correctly nor allowing me to access some things?

HELP!

Jason