Hello, and welcome to the Vista Forums!
I am
Richard, and I will be helping you with your problem today.
You may need to write these instructions down, so that you do not forget them, print them off, or view them on another computer.
Please turn your computer off.
Start it up again, and immediately start tapping the F8 key.
When you get a list of Advanced Startup Options, try
Last Known Good Configuration.
If this does not help (and this one probably won't, but occasionally it will, it is easy, and so it is worth a try), then go back into the Advanced Startup options, and select
Safe Mode.
Let Safe Mode boot, and tell me if it works or not. If you get a Blue Screen of Death(BSoD), then continue to read, to see what to do.
If neither
Safe Mode nor
Last Known Good Configuration works, go back into Advanced Startup Options one more time, and select
Disable Automatic Restart on System Failure. Wait for your computer to try to boot up again, and now you will get a BSoD.
Please note down the following things. BSoDs follow the same pattern each time, and so there is no need to copy all of it, just the three things.
A BSoD will look
similar to the following (click on the image to expand)
- I need the text code (circled in red at the top) This will be different from the one in the picture, and may be like DRIVER_IRQL_NOT_LESS_OR_EQUAL Very, very occasionally this will not appear.
- I need any files mentioned. The name of the file will move around the BSoD, so you cannot rely upon it being in the same place. It will not always be present, but it is particularly important if you get a File not Found error.
- I need the STOP code (but only the bit before the brackets)
Each of these is vital to know if shown, so please look hard for them, but sometimes they are not all shown, so just list what is shown!
Good luck!
Richard
P.S. Do you have access to another computer during this time, to run fixes from?