My Dad has an Acer Aspire 5310 Series running Windows 7 Home Premium. Originally it came with Windows Vista which I replaced with Windows 7 for him. When I first did it the was plenty of room on the C drive. Since then it has gradually got fuller and fuller. I've moved everything I can to the D drive, so there's very little in his user area, downloads, etc. yet it still keeps filling up. It currently has a total of 32.5GB available on the C drive with 2.85GB free.
Please can someone suggest something I can do to free up space on his C drive?