I’ve found registry cleaners that are free until they scan your system, then they want to charge you before they get the job done… Right now I don’t have my plastic money with me, and I need to do a registry cleaning as of yesterday. Please help!

Here is my situation. I was surfing the web on my two year old Dell Inspiron 1521 laptop with Windows Vista when the computer froze and locked up. I could not click on anything or do anything. I restarted the computer. As it restarted the Windows Startup Repair window came up. It scanned my computer and found errors that it could not fix automatically. It told me that there was no operating system installed. I went online and troubleshot the computer as best as I could. I did not want to lose the information on my hard drive so I went out and bought a new one and installed Windows Vista on it. After two months, no problems. I ordered a case and USB connector for the old hard drive. When I plugged it in to the computer and looked inside the files I was stunned. All the files under my username were gone. Windows said the folder was empty. How could this be? I found data recovery software that scanned my old hard drive and was able to recover all my files. The files were only lost; they were sitting on the hard drive but could not be accessed except after the data recovery software did its job. I have been trolling the web looking for answers. Can anyone explain why or how this could have happened? What can be done to prevent this from happening again?

BSOD: Copied over /repair/software and now can’t login!?
My work computer recently stopped working. When I boot it up, it gives me blue screen with hive message can’t find system32\config\system. I went into recovery console but it wanted admin password which I don’t have and corporate won’t give me. I don’t want to send it in and wait to get it back, so I hooked up hdd to a desktop and copied c:\windows\repair\software to c:\windows\system32\config\sof… Put hdd back into laptop and booted up and it boots into windows! However, it doesn’t recognize my username/password anymore. What can I do to fix this?

Thanks!
i’m not hacking it; i’m simply fixing it like i would if it were mine, but now my username/pw no longer works; i’m in IT, but i’ve never run into this problem before; they can’t give me the admin pw because it’s the same for the entire company, but i can fix it on my own to save the company a lot of money; and i’ve made backups so everything i do is reversible; i simply need this to work so I can do my job
Well this is the answer I get? And from a "top contributor" at that.

Are there any really good free registry cleaners out there like the uniblue 2009 one. You only get a free scan with that and it removes 15 enteries without you having to pay. I have cc cleaner but I think that sucks. Are there any free ones that do the job, thanks!
NOT CC CLEANER!
I SCANNED WITH CC CLEANER IT CAME UP WITH THE INVALID ENTERIES – THEN IMMEDIATLEY AFTER I SCANNED WITH UNIBLUE AND IT CAME UP WITH SEVERAL MORE SO CC CLEANER OVB DOESN’T PICK THEM ALL UP!

I downloaded both Registry Mechanic and Ccleaner. It turned out that Registry Mechanic offered only a free trial. The free trial included running the program, pointing out hundreds of errors and fixing something like sixteen errors and leaving the others.

Ccleaner was truly free and I thought it would do the same job as Registry Mechanic, but it didn’t. When I ran Registry Mechanic after Ccleaner, it still pointed out 323 errors.

So, I’d like to download a totally free product that will fix some of these errors. Any suggestions?