Allllllrighty

I have a dell xps630i and I haven’t had any trouble out of it at all. Until I installed a RangePlus Wireless PCI Adapter.

I’ve had several years of experience with computer repair and upgrading and I’m 100% positive my putting it in didn’t break anything…

Now my operating system wont load. When I go to boot it , it tells me "Windows failed to start, a new software or hardware change could be the problem". When I run a diagnostic test on it , it gives me error number 0F00:021B saying something about a flaw in media or error in recorded data.

My computer has been acting a little funny about a day or two before this actually came up.

What should I do?

Do you know of any FREEEEEEE programs out there that will repair things on the computer. I’m trying new antiviruses but if that isn’t the problem then maybe something else is. What can I do?
I want a computer repair such as machanic not an anti spy. Everything that I have run so far has said that there is no spyware and no viruses. The problem must be something else. I already have the programs that are listed in the answers so far.

Will Geek Squad or any other computer repair personnel fix this problem for me?
So I’ve had my zune for some months now
But in order to download the software you need
Windows update to update itself
But I can’t do windows update because it has an error
So I was trying to fix it and I uninstalled some KB number which I do not know, which now make my computer not play music
so I have 1 problem that spreaded

1.)Can’t download zune software
2.)Windows update won’t update because of a error
3.)Music won’t play on my computer because I uninstalled a KB number I don’t remember (example KB4424242 Video intensifier)
4.) Music won’t play when I go to youtube or any other site to listen to audio.

Please help me!!!!!!!!!
system restore won’t work It saved for only one day and it was after I uninstalled the microsoft KB software.

2007-Present
American Pacific College Teacher /Computer Repair and troubleshooting-Prepare student for A+ Certification tests, Installation configuration and troubleshooting techniques of PC Hardware/software such DOS and windows. Take down and inspection of PCs and overview of architecture, installation of Hard drives configuration of CMOS and installation of peripherals. Configured PC for Internet connection set-ups, e-mail. Responsible-Installation and Configuration of Network –Diagnostic and Repair Network Equipment Installation Internet for DSL…
Los Angeles, CA

2007-Present
Teacher /Computer Repair and troubleshooting-Prepare student for A+ Certification tests, Installation configuration and troubleshooting techniques of PC Hardware/software such DOS and windows. Take down and inspection of PCs and overview of architecture, installation of Hard drives configuration of CMOS and installation of peripherals. Configured PC for Internet connection set-ups, e-mail. Responsible-Installation and Configuration of Network –Diagnostic and Repair Network Equipment Installation Internet for DSL…
Los Angeles, CA