Windows failed to start?

January 11, 2010

So I tried to install a game demo, which finished then asked me if i wanted to restart the computer, so I did. When it starts up it says:

Windos failed to start. A recent hardware or software change may be the cause. To fix the problem:

1. Insert your Windows Installation disc and restart the computer
2. choose your language settings, then click Next
3. Click "repair your computer"

File: \Windows\System32\drivers\sfsync.02.sys

Status: 0xc0000428

Info: Windows cannot verify the difital signature for this file.

If I put in my Vista disc then it comes up with another screen asking If I want to run in Safe mode, run normally etc.

My keyboard won’t work on this screen so I can’t select anything!! What do I do? I really don’t want to have all my stuff wiped so please help…
I would try to do that but my keyboard won’t respond when the screen comes up, so I can’t select anything.

Windows failed to start error, please help?!!?

December 29, 2009

Brand new Asus model X83V. Had it for about 2 weeks. I turned it off (properly) and left it alone for about 2 hours. When I turned it back on "Windows boot Manager" came up with the following message;

"Windows failed to start. A recent hardware or software change might be the cause. To fix the problem:
1. Insert your Windows installation disc and restart your computer.
2. Choose your language settings, and then click Next.
3. Click "Repair your computer."

File: \Windows\system32\kdcom.dll
Status: 0xc0000098
Info: Windows failed to load because the kernal debugger DLL is missing, or corrupt"

I have not installed anything since 2 weeks ago. I do not have a Windows disc. I have a recovery disc, but if I run that I will lose my pictures. My pictures are super important to me. I would lose all the pictures from my daughters birthday, among other important pictures I just can’t lose! Please help!

An important pc driver is corrupt and windows cannot startup! Fix this without losing data?

December 12, 2009

Hi,
My computer was fine just the other day, but i started it up today and now it wont boot up! I get an error message ‘Windows failed to start. A recent hardware or software change might be the cause.
File : CLASSPNP.SYS
Status : 0xc0000221
Info : windows failed to start because a required file is missing, or corrupt.

I put my vista setup disc in, i ran ALL the things it told me to (system restore, windows memory diagnostic, system repair, command prompt) but still they all fail.
I dont want to lose ANY files, because i have been doing lots of work lately on the pc and saved lots of important documents, is there a way i can reinstall vista without losing any of my important work?

My HP laptop won’t start, how do I disable the driver signatures to make Windows start?

September 15, 2009

As far as the driver digital signatures, it crashes right after I see my screensaver and reads me this long error message.

a recent hardware or software change might have installed a file that is signed incorrectly or damaged, or that might be malicious software from an unknown source.
If you have a windows installation disc, insert the disc and restart your computer. Click "repair your computer," and then choose a recovery tool.
Otherwise, to start Windows so you can investigate further, press the ENTER key to display the boot menu, press F8 for Advanced Boot Options, and select Last Known Good. If you understand why the digital signature cannot be verified and want to start Windows without this file, temporarily disable driver signature enforcement.
Status: 0Xc0000428
Info: windows cannot verify the digital signature for this file.

Enter=Continue|Esc=Exit

What I’ve tried so far:
Safe Mode (won’t work)
System Repair (won’t work)
System Check Point (none created)
Okay, it let me in Windows, where do I go from here?

How can I figure out the problem now that I’m actually in Windows now?

I’m paranoid, I feel like any minute it’s about to boot me off and give me that dreaded all blue prompt screen again-lol