Hi Broni,
So, after we last talked, I continued working some more. This is what I did and the results I've had.
1.- I forced the pc to turn off by pressing the turn on button.
2.- I turned pc back on, and tapped f8 to go to safe mode in order to put created cd in cd drive.
3.- I restarted pc and booted from created cd.
4.- I followed the same steps as before.
5.- Instead of selecting "Command Prompt", I selected "Startup Repair".
6.- No problems were found. Just in case you need additional details, I'm posting full message received.
Startup Repair could not detect a problem
If you have recently attached a device to this computer such as a camera or portable music player, remove it and restart your computer. If you continue to see this message, contact the system administrator or computer manufacturer for assistance.
Review diagnostic and repair details (---> this was in light blue color))
Review advanced options for system recovery and support (----> in light blue too)
Back (--->not highlighted) Finish (--->highlighted) Cancel (--->option available)
7.- I clicked on the first link in light blue "Review diagnostic and repair details" and this is what came up.
Startup Repair
Startup Repair diagnosis and repair log
----------------------------
Last successful boot time: 2/12/2012 7:54:54 (GMT)
Number of repair attempts: 1
Session details
----------------------------
System Disk = \Device\Harddisk0
Windows directory = C:\Windows
AutoChk Run = 0
Number of root causes = 1
Test Performed:
---------------------------
Name: Check for updates
Result: Completed successfully. Error code = 0x0
Time taken = 0 ms
Test Performed:
---------------------------
Name: System disk test
Result: Completed successfully. Error code = 0x0
Time taken = 0 ms
Test Performed:
---------------------------
Name: Disk failure diagnosis
Result: Completed successfully. Error code = 0x0
Time taken = 203 ms
Test Performed:
---------------------------
Name: Disk metadata test
Result: Completed successfully . Error code = 0x0
Time taken: 62 ms
Test Performed:
---------------------------
Name: Target OS test
Result: Completed successfully. Error code = 0x0
Time taken = 94 ms
Test Performed:
---------------------------
Name: Volume content check
Result: Completed successfully. Error code = 0x0
Time taken = 93 ms
Test Performed:
---------------------------
Name: Boot manager diagnosis
Result: Completed successfully. Error code = 0x0
Time taken = 63 ms
Test Performed:
---------------------------
Name: System boot log diagnosis
Result: Completed successfully. Error code = 0x0
Time taken = 0 ms
Test Performed:
---------------------------
Name: Event log diagnosis
Result: Completed successfully. Error code = 0x0
Time taken = 47 ms
Test Performed:
---------------------------
Name: Internal state check
Result: Completed successfully. Error code = 0x0
Time taken = 0 ms
Test Performed:
---------------------------
Name: Boot status test
Result: Completed successfully. Error code = 0x0
Time taken = 0 ms
Root cause found:
---------------------------
Boot status indicates that the OS booted successfully.
---------------------------
---------------------------
Close (------> this was a clickable button)
8.- I clicked the "close" button and then clicked on the "Restart" button of the previous window, which was the last window in your instructions:
System Recovery Options
Choose a recovery tool
Operating system Microsoft Windows Vista on (C

hp (----> Note: in your instructions it said "(C

Local Disk" but on my computer it said "(C

hp" )
... And then all the exact options as in your instructions: startup repair, system restore, Windows Complete PC Restore, Windows Memory Diagnostic Tool, Command Prompt.
9.- So, I clicked "Restart", quickly removed the created cd, and let it boot in normal mode but it never did. It got stuck in exactly the same place as before: the screen that comes up right after the normal initial blue screen that has HP logo and on the bottom it gives you different options with the f keys among a couple of other things that I don't remember at this time. The screen where the pc got stuck again is all black with a bar that has like 3 or 4 small green squares in a row that keeps moving forward quickly and when they get to the end of the bar, they start again from the beginning of the bar, and on and on like that. It looked as if the machine were really booting up. But I could not hear any noise or sound or anything coming from the cpu, it was really silent, not doing anything at all.
10.- I let this screen run like this for about 15 or 20 minutes hoping that it would eventually boot up but nothing happened. So then, I pressed the pc turn on button and forced the machine to turn off.
That's all I did and now I'm going to bed. I'll talk to you tomorrow Sunday.