Windows 7 Ultimate 64 bit restart in loop

Hi,
I have a problem with win 7 that restart in loop.
First problem become when I not know how but in BIOS changed settings from RAID1 to IDE Controler.
Win become to restart, I return settings to RAID1 but have the same problem.
I try to make with instalation CD:
- system recovery
- cmd bootrec with fixmbr, fixboot, rebildbcd, then chkdsk /r, sfc /scannow, ... without success

With bootrec /rebuildbcd give me error total windows instalation 0.
After another restart I have sometimes error depend of options I try, described in upper text:
- \BOOT\BCD, press ENTER and restart
- 0xc0000006b (00000000,00000000,0000000) and restart in loop
- lunch recovery repair or start windows normally if chose all of this two options win restart in loop

Anyone have a quick resolution of the problem or I need to reinstall win 7?
I have to many data, programs and settings that I lost with new installation.
Please help if possible.
Thanks.

Thanks, I try this but the error is the sam, windows restarting in loop.
If I press F8 at startup and disable automatic restart, they give me blue screen with error PROCESS1_INITIALIZATION_FAILED
STOP: 0x0000006B (0x0000000000000000, 0x0000000000000000, 0x0000000000000000, 0x0000000000000000)

They make a crash dump and stop.

Thanks. I try this but not work for me. I spent to many time try to solve this problem without success. Finaly I reinstall windows and now works normaly. I not know what was corrupted but reinstalling works. I lost all data and installed software.