xp still acting up?

i’m running xp home (unfortunately) and i actually have this problem on my laptop and my parents computer. i am not able to open up folders, ie my computer, control panel, etc. i’m also not able to open up IE or AIM or shut down via the start menu, i’ve got to hold the button down for a bit before it shuts down. i’ve defragged both computers a few days ago and just recently installed a registry cleaner. any thoughts? thanks

Undo XP Repair?

Hi. How do I uninstall an XP repair process that cannot be completed because I am misplaced the correct activation key to complete the process?

My laptop had been rather slow for a couple of weeks so I proceeded to defrag my hard drive when it suddenly took me to an error message indicating that the file "nostrolkrnl.exe" file was either corrupt or missing. I then replaced the file using the recovery console on an XP installation disk. This however took me to a "blue screen of death" (BSOD) message reading: "STOP: COOOO21a {fatal system error 0x00000000 0x00000000}. The session manager initiation system process terminated unexpectedly with a status of 0xc000026c".

At this point, I proceeded to fix my Windows by using the repair function in my XP Professional installation disk. However I was unable to complete the process as I lost the key (I didn’t think it would ask me for the key if only using the repair function). Please note that the installation disk I used to repair my window is not the original one for my laptop. I bought the laptop "used" with no accompanying disks. The laptop now is in a state where it only prompts me for the activation key (after the Windows splash screen) and does not offer me the option to uninstall this repair.

Please let me know if it is possible to uninstall this and/or (assuming it’s possible) how to repair the BSOD. The BSOD message doesn’t show now, but I figure it will if as soon as I am able to uninstall the repair.

Also note that my hard drive appears to be fine as it passed several tests using Techies Toolkit software.

I have this odd problem with my vista laptop, when I connect to my wireless network , it marks it as an unidentified network , and will not connect to the internet. My sister’s laptop connects perfectly fine with the exact same network, and the home pc that I’m on now, so the problem must be with my computer itself, I have run multiple system diagnostics , nothing comes up. The only solution my computer can come up with is to visit the microsoft website and download a software fix into the computer , which might work if the problem wasn’t I could access any websites.

So mainly, how can I get my computer to identify my network and connect to the internet?

Rigistry Cleaner question?

Ok, so it seems every time I use my 1gig flash with the laptop it completely screws up my registry and crashes my computer. I’m not paying for a program to do it b/c I have no money to do such frivolous things, but I found this Regcleaner called "Eusing". Anyone heard of or used it? Its freeware and insists it isn’t spyware (which makes me think it is) but it seemed to do the trick after the first scan. Is there a better freeware program out there to do the trick that you know for sure isn’t spyware? Thanks.

Hey!
I’m windows vista. My laptop is starting to get a little bit slower cuz of the registry files ”i think”
So what is the best pc cleaner in your opinion and why?
I would appreciate your answer and thanks!