I tried turning on my laptop and it takes me to a screen which says "Windows failed to start. A recent hardware or software change might be the cause." It then gives me two options, which are "Launch Startup Repair" and "Start Windows Normally." I have tried using both, but either choice makes my computer restart and takes me to the same screen. Alt+Ctrl+Del restarts my computer as well. Escape shuts of the timer to automatic selection. I have tried running both the recovery CD and the support CD, and neither works because Windows is not operating. Do you have any suggestions as to what I should do?
I cannot give the computer any commands via mouse, and it will not respond to any keyboard commands either.

First Question:
Where to download a free "FULLY FUNCTIONAL" registry scanner and cleaner that will fix the problems. Not just tell you you have problems and offer to fix 2…

Second Issue:
When I open a new browser window, open a link, double click, or after a few minutes my browser will pull up an advertising browser window.
I have tried Avast, AVG, Malwarebytes, and I’ve just downloaded SpyDllRemover (I ran it but honestly I’m lost as to what to do with that). I also erased all the cookies in hp admin where most of of the spyware on my computer seems to be focused. Anyways none of them have stopped the ‘root kit?’ or whatever it is.

Here is an example of the link it opens
http://lightseek.biz/
It pulls up others as well

I haven’t noticed it doing anything, but then again I don’t want it using my computer for things I can’t see.

Second Question:
Does anyone know what it is? If you do, do you know of a way to get rid of it with freeware? I’ve already asked once and downloaded malwarebytes, and while I like malwarebytes, it didn’t resolve my original issue.

If you need additional details please just ask.
Pop Up blocker has been active for as long as I’ve had this computer and on my previous computer
CC didn’t work, matter of fact it made it worse. Thanks for the answers but I’ll just bug my computer geek friends.

My computer (Dell) crashed on me and via Blus Screen diagnostic, I’m getting error code "c0000218 {registry file failure} The registry cannot load hive (file): \SystemRoot\System32\config\SOFTWARE or its log ot alternate. It is corrupt, absent or not writeable."

Any ideas what these errors are and how to resolve them? If there is a place for me to look this up, let me know. I haven’t backed up my files in a few weeks, so there are SEVERAL things I need to get off the hard drive!

I have a laptop and a desktop PC (vista and XP respectively). In the past 1 – 2 months, they both seem to run significantly slower. In particular, surfing the internet is very slow; loading pages can take minutes or not load at all. Reloading a page sometimes helps. This occurs regardless of the browser used ( I have used IE, firefox and chrome, all with the same result).

I have done the following and nothing has helped:
– run a registry cleaner
– run AVG and Adaware anti-virus and anti-malware programs
– cleaned the hard drives and defrag’d them
– ensured I have more than 500 mb space on the "C" drives (I have plenty of space)
– removed non-essential programs from auto start up
– verified the speed of my internet connection

Any suggestions would be appreciated.

Thanks.

Okay. Let me tell explain what happened. First, I installed MSN Plus!", and then the Windows Live Messenger was acting strangely, like It’ll close by itself automatically for a few minutes, but when I try to open it again, It won’t open; I have to restart the computer to sign on. Then, Second: I tried to Uninstall the "MSN Plus!", but nothing changed, so I tried to Repairing the Windows Live Messenger, but nothing changed as well. So I had to Unstall the Windows Live Messenger, but it says It doesn’t exist, when I go to Add/Remove Programs, The Windows Live Messenger Icon is there, but the software isn’t. Finally, I tried to install it again, but it tells me that you already have Windows Live Messenger installed, then I tried to install the Beta Version of Windows Live Messenger, and tells me the same thing. I don’t know what to do. This is the first time happening, and I don’t want to restart the whole harddrive just because of a software. So Please Help. Thank You