Windows XP common booting errors and their fixes

Here are some common Windows XP booting errors and their possible fixes.

Black Screen Hang (before splash screen shows)
- Disk Diagnostic
- CHKDSK /F /R (try to boot)
- fixmbr (try to boot)
- fixboot (try to boot)
- Safe Mode (try to boot)

MBR
Invalid Partition Table
Missing Operating System
Error Loading Operating System
- Disk Diagnostic
- CHKDSK /F /R
- fixmbr (try to boot)

BOOT SECTOR
Disk Read Error occurred
NTLDR missing/compressed ( http://tinyempire.com/notes/ntldrismissing.htm )
- Disk Diagnostic
- CHKDSK /F /R
- fixboot (try to boot)

NTLDR
Boot Device is Inaccesible (boot.ini)
- Disk Diagnostic
- CHKDSK /F /R
- bootcfg /rebuild

System Hive is Corrupt
- Disk Diagnostic
- CHKDSK /F /R
- restore System Hive from backup

other File missing or corrupt
- Disk Diagnostic
- CHKDSK /F /R
- restore copy from backup

Missing HAL.DLL error
- Check boot.ini
- bootcfg /rebuild would attempt to fix this when in the Recovery Console

NTOSKRNL.EXE
Black Screen Hang (after splash screen appears) (usually video driver)
- Last Known Good Configuration
- Safe Mode
- install/reinstall latest version of video drivers.