Posted 07 December 2006 - 10:39 PM
If the system won't boot to even Safe Mode, then you've got problems, but there are a lot of things you can try.
First, Safe Mode will load most things except most of the drivers and peripherals, including most services. I would disconnect the printer, camera, external hard drive, phone cradle, Ipod, modem, USB hub... everything external but keyboard, mouse and monitor.
If it still won't boot to Safe Mode, you need to boot to the operating system CD and run the recovery console ('Repair' option) instead of a full reinstall. when you see the c:\ , type chkdsk /r , press enter, and go get a six pack and pizza. you'll be sitting there for a while. This command will repair/replace your boot files so you can get back into Windows.
If you CAN boot to safe mode, and not the others, software's your issue and it can be fixed. kill the startup group via start>run>msconfig, select the startup tab, disable all, select the services tab, check "hide all Microsoft Services" and disable all the others, apply, close and restart normally you should be able to boot then. From there it gets tricky...
Let me know how your system behaves..