i need a free program that will get rid of stuff that has been deleted from my add and remove programs but still in my hard drive please help me

I recently had to leave my laptop in the hands of some techs to do a diagnostics check on my computer. It turned out I needed a new hard drive, which sucked. But when I left it with them, it had the software disk to my tablet in it, and it came back without it. I’m assuming they needed to remove it to reinstall Windows, but forgot to return it to me.

If I can’t manage to get the disk back from them, does anyone know where I can download this software so I can get my tablet reinstalled?

Thanks in advance.

I am in the process of doing a clean install on our home desktop. I booted up the cpu, and I chose start from disk. It took me to Windows XP Home Edition Setup screen. It gives me three options, the first is to set up Windows XP now, and Press Enter. The second is to repair an installation, press R. The third is to quit. I obviously want the first one, and i so I press enter….but nothing happens. I checked the keyboard, and its plugged in and working. But it doesnt take me to the next screen. What can I do? Please help

I have recently encountered a spyware/malware infestation.
I cleaned my computer of the malware through the help of an online forum.
However, one of the malwaren deleted several registry keys. Looking around, all I can find for free are registry cleaners, but no registry repairers. Uniblue claims to not just clean the registry, but also repair it. Does anyone have any experience with this program? I have already run CCleaner, but now I need something to repair the missing registry keys, does anyone know if uniblue will solve this problem?