HD Space missing when moving files and deleting XP User account

Hi this is my first post so please bear with me

I had a user account in XP which was my own as an administrator, I set up a 2nd user account also administrator and for some files I cut and paste from one user account to the other, some I copied and pasted from one user to the other

I confirmed the files were all there, and I deleted some files from the first user account, and then I deleted it, choosing the option to delete files

Now in my new user account all my files are showing, but i’ve only got 33gb disk space, whereas I should have about 68gb

Before I started transferring the files between user accounts I did have 70gig free

can anyone tell me how to get my missing space back

thanks