Windows Vista boot problems, need to press Ctrl + Alt + Delete to work around

original title: VISTA Boot Up problem

I have an emachine with Vista for over 2 years with no problems, but recently, when I turn on the PC I get a black screen that says: "Boot From CD-ROM AHCI.  NVIDIA Boot Agent 249.0542.  Client MAC ADDR: 00 1 D 72 A9 D7 B6 GUIDE FFFFFF... "In order to get past this screen, I press Ctrl-Alt-Del and it will then start VISTA.  The last 3 days, the Ctrl-Alt-Delete method failed the first time and I had to repeat up to 3 times.  Now I wonder how long the Ctrl-Alt-Del bypass method will last.  What can I do to get the pc to boot normally again?

start in safe mode.

Choose Repair computer

Or the last known good configuration.

If windows loads in safe mode then uninstall any recently installed.

Maybe do a system restore to an earlier date.

Tags: Windows

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