Solved Problems after changing video card - can't use safe mode

Hi,
My win 8.1 pc died after the fan control was accidentally disengaged. I replaced the cpu and the video card while I was at it, going from nvidea to amd.
The pc booted up ok, I installed the amd drivers, rebooted. Then I uninstalled all the nvidea software.
Now when I boot, there is some kind of loop going on after the initial blue window sequence. The screen is black but some screen icons flicker repeatedly and there is a mouse cursor.

I cannot get it to boot in safe mode to try to repair this. I made a recovery disk with my other 8.1 machine but it doesn't give me startup settings. The command line from the recovery disk also seems unable to set any safe mode flag.

Any ideas?

My mistake - I was typing bcedit at the command prompt instead of bcdedit. Finally got it to boot into safe mode.

Let us know how you get on with it.

All OK now - in safe mode I uninstalled the video driver, rebooted and downloaded and installed the latest AMD driver instead of using the one which came with the card.
Reboot in safe mode from the command line, for anyone who wants to know:

Command line is in the Advanced Options under Troubleshooting when using a Win 8 Recovery Disk.