cant boot after switching to AHCI

I have a SSD and tried to switch to AHCI without having to reinstall. A guide suggested i had to do to device managers and then select my IDE items, select manually install driver and install the driver for AHCI

Well now i can't boot windows 8 anymore. I get an error message before the loading is finished, and i don't even have the time to read it my computer will instantly reboot and do the same thing over and over again

Setting the BIOS to AHCI will just cause another error. Windows8 won't boot and will tell me i need to repair it.

What can i do to fix it ?

Automatic repair from install CD isn't helpful. I don't have any system restore point.

Can you boot into safe mode? Set bios to IDE boot to safe mode and uninstall the driver.

I haven't figured how to boot into safe mode under Windows 8.

F8 isn't working.

I found a workaround to start in safe mode, but i'm getting same problem. Windows will crash and computer will reboot after the windows loading animation

There is a few fix it's in this thread:

http://www.eightforums.com/drivers-hardware/22126-changing-ide-ahci-caused-no-boot.html

Managed to find safe mode, but windows still crashes before loading.

The suggestion in that thread refers to using regedit. Can't get into windows so can't use regedit...

http://www.eightforums.com/drivers-hardware/22126-changing-ide-ahci-caused-no-boot.html#post207928

Brink said:

You'll need to switch it back to IDE in BIOS for now so that Windows will be able to boot. Afterwards, you might see if using the tutorial below may be able to help.

Click to expand...

Already did that. Still same problem..