Sunday, November 25, 2007

Operating Systems: Modes for dealing with bad displays

Your neighbor's children were playing games on your Windows XP computer and in the process managed to modify the display settings to use white letters on a white background. Now all you can see on the Windows desktop are icons without titles, and all dialog boxes have no visible text.
What would be the best startup option to correct this problem?
1. Recovery Console
2. >>Enable VGA Mode
3. Debugging Mode
4. Enable Boot Logging

Explanation : Enable VGA Mode is used when the video setting is such that you cannot see the screen well enough to fix a bad setting. This can happen if a user creates a desktop with black fonts on a black background, or something similar to that. Booting in this mode gives you very plain VGA video display but allows you to change the settings in the Display properties.

The Enable Boot Logging option allows the system to boot normally while recording all files loaded during the boot process. The log is recorded in a file named NTBTLOG.TXT. The log will identify which drivers loaded and which failed. This is especially helpful if you have a copy of the NTBTLOG.TXT file that was created before there was a problem. You then could compare them to see what has changed.

Debugging Mode gives you the opportunity to move system boot logs from the failing computer to another computer for evaluation. To use this mode, you first must connect the failing computer to another computer using a serial cable. You then can review the boot logs on a functioning computer.

The Recovery Console does not start the graphical interface, but it does allow you to access any FAT16, FAT32, and NTFS file systems. The purpose of the Recovery Console is to allow you to repair a damaged registry, system files, or file system on the hard drive.
Objective: Operating Systems