I have a dell Inspiron E6520. After le september windows updates the pc would not reboot (it had windows 7 running at the time). I tried all the tips I found on the web to reset the MBR etc. but to no avail. The windows autofix would not work either. I therfore reinstalled windows from scratch - the pc would reboot in windows 7 but after windows update installed the 144 update found it would no longer reboot again. "BOOTMGR missing". I therfore replaced the SSD under warranty thinking it might be a hardware problem, as I also tried restoring a disk image from may, but the image would also not boot.
I then reinstalled win 7. Before updating windows 7 I installed the Win 8 pro upgrade I bought to try and bypass the problem altogether.
Now I have a strange problem. Upon boot I get a 0xc0000034 error. If I insert the windows 7 cd in the laptop's cd player (Running Windows 8 now on the PC) the pc boots regularly into windows 8!
To sum up: windows 7 would not boot no matter what. Windows 8 pro now boots only if the Windows 7 cd is in the laptop. Is there a way to fix this problem once and for all? Why would the system not boot in windows 7? The SSD was brand new the second time.
Thank you for your kind help, I'm usually able to fix things myself but I admit I'm not competent enough to solve this problem here.