my aunt asked me to install Windows Vista Home Premium on her comp.,she had XP and it saysWindows Vista capable.When Installing I selected the Upgrade option instead of doing the clean installation. no problems installing,but afterwards everything is running slow. Ibrought the comp.to my house to use dsl &installed all the the windows updates in hopes that it would solve the slowness. When that was done the computer restarted itself &said it was configuring the updates & then when I came back to check on it Windows Boot Manager was on the screen saying:
"Windows failed to start. A recent hardware or software change might be the cause. To fix the problem:
1.Insert you Windows installation disc and restart your computer.
2. Choose your language settings, and then click NEXT
3. Click REPAIR YOUR COMPUTER
…File: \windows\system32\winload.exe status: 0xc000000f

When i put the vista or the hp reinstall disc in nothing happens. PLEASE help I really dont want to lose everthing. THANKS.
I can’t get past the Windows Boot Manager, I tried pressing F8 to try and get it back to last known good configuration, but pressing F8 doesn’t do anything. I’d be happy if I could just get back to the XP version so she doesn’t lose any of her programs, and then trying to re-install Vista while connected to the internet.

We apologize for the inconvenience, but Windows did not start successfully. A recent hardware or software change might have caused this.

If your computer stopped responding, restarted unexpectedly, or was automatically shut down to protect your files and folders, choose Last Known Good Configuration to revert to the most recent settings that worked.

If a previous startup attempt was interrupted due to a power failure or because the Power or Reset button was pressed, or if you aren’t sure what caused the problem, choose Start Windows Normally.

Safe Mode
Safe Mode with Networking
Safe Mode with Command Prompt
Last Known Good Configuration (your most recent settings that worked)
Start Windows Normally

^^^ that is what i get when try to start my computer. no matter which option i try they all send me back to that same screen. I don’t have my windows xp cd to repair it or do whatever the cd is needed to do. anything i can do to fix it without the cd?

i have an acer aspire M5640 and when i press the start button a few seconds later i it fails to boot up with the following symptoms:

I get a message saying "Windows failed to start. A recent hardware or software change might be the cause. i says something about a installation disc and i dont have it. it also gives me the following options 1. Insert your Windows installation disc and restart the computer.
2. Choose your language settings and click next.
3. Click "repair your computer"

It also gives me the following options:

4. Safe Mode
5. Safe Mode with networking
6. Safe Mode with Command Prompt
7. Last known good configuration
8. Start Windows normally
none see to work. what can i do only a true geniusis can answer this so please help:)

I’m having some virus trouble and since then I have no sound. I have a Creative Soundblaster Audigy 24 bit Soundcard installed.

Control Panel Says: "Windows cannot start this hardware device because its configuration information (in the registry) is incomplete or damaged. (Code 19)"

The viruses load up on boot, ending the viruses on task manager stops a blue screen error, but the viruses won’t be detected by my anti-virus.

I tried to do system restore, to a point 2 days ago, when the sound worked and I keep getting blue screen errors saying your computer has been shut down to prevent hardware damage.
I can’t start my computer in safe mode either, and last known good configuration gets the same blue screen error.
I also have "Registry Mechanic" back-ups for my registry for various dates, but this fails to solve the problem too.

I try and play a file in winamp and get the following error with a loud beep:
Nullsoft Direct sound output v.2.47 (d) error. Bad directsound driver, please install proper drivers or select another device in configaration.
Error code: 88780078

Direct x says: "No sound card was found. If one is expected, you should install a sound driver provided by the hardware manufacturer."

Please can you link me the drivers for my Soundcard or provide any other help for restoring the registry.

"do you have sytem restore"
I have one for 30 October 2008 (made by Registry Mechanic) so there will be a back up of my registry. But I get a blue screen hardware error.

I also tried this: http://www.downloadatoz.com/windows-registry/faq,how-to-repair-windows-code-19-registry.html

However, Registry Booter would not install due to this error: http://support.microsoft.com/kb/315353

Windows failed to start . A recent hardware or software chagne might be the cause. To fix the problem:
1. insert Windows installation disc and restart your computer.
2. Choose you language and click next.
3. Click repair your computer

Other options
Safe mode
safe mode with networking
safe mode with command prompt
Last known good configuration
Start windows normally.

I have done the first option and it just says if the errors were fixed correctly then windows should start normally.
All the other options just load and super fast blue screen flashed and then it reloads everything.
It is a dell inspiron 6400
I am running windows vista home premium 32bit