,,please help..I have downloaded and installed the latest update for vista..It is called vista sp2 update..,it says,,this installation will last for an hour or more.,blah blah,after then i waited and installed the update..When i tried to boot my pc..It says ..Windows failed to start.A recent hardware or software change might cause..I have 2 choices,launch startup repair(recommended);start windows normally..I tried to choose launch startup repair and for so long..Finally its finished..But!!The problem is when i start it normally the Microsoft corporation sign and the progressbar appears so long..and ive waiting for hour but nothing happend..Please help me with dis problem..Pls thnx..

When I restart my computer I keep getting a black screen with the message

Windows failed to start. A recent hardware or software change might be the cause. If
windows files have been damaged or configured incorrectly, startup repair can help
diagnose and fix the problem. If power was interrupted during startup. Choose start
windows normally

Launch startup repair

Start windows normally

When I choose either one it goes back to this same screen asking it again. I also tried
using the reinstalling dvd windows vista home basic 32bit

When I press f 8 it gives me a list of options on advanced boot options
I,ve tried repair your computer and safe mode and it still does the same thing

When I restart my computer I keep getting a black screen with the message

Windows failed to start. A recent hardware or software change might be the cause. If
windows files have been damaged or configured incorrectly, startup repair can help
diagnose and fix the problem. If power was interrupted during startup. Choose start
windows normally

Launch startup repair

Start windows normally

When I choose either one it goes back to this same screen asking it again. I also tried
using the reinstalling dvd windows vista home basic 32bit

When I press f 8 it gives me a list of options on advanced boot options
I,ve tried repair your computer and safe mode and it still does the same thing.

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

this morning i started up my computer and as soon as i was putting my password in it restarted it did it 2 times but the next 2 times it didn’t even get to the putting in password bit and after the 2 times it restarted it did it one more but before it did it went to windows error recovery and gave me options safe mode , safe mode with network, safe mode with comand ppromt , last know good config, and start windows normally and at the top it said (windows failed to start.a recent hardware or software change might be the cause tp fix the problem insert windows installati)on disk and restart the computer and chooser ur language and click next click repair your computer) i found the disk but it ain’t the actually windows vista disk its the computer company product recovery dvd=rom (pryon) and vista was pre installed i put the disk in and it dosent do nothing like it won’t run im trying to keep my programs on the computer any way to fix this problem or ideas or help
i already know what to do but the disk ain't running
help me plz its driving me insane i can't get the disk to run i tryed everything